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Mayhems 71 Nova
Hi folks, i'm still a newbie here, but wanted to post a couple of pics of my car. It is hardly a numbers or mint car, but I still like it. It was a Rally V-8 model, automatic. It now has a built 350, decent Comp Cam, TH-400 with decent shift kit, line lock, Hurst Quarter-stick, MSD-6A, AutoMeter gauges/Tach/Shift light, Billett pulleys, catch can, EP aluminum heads & intake, Holley HP 750 DP, March Industries brackets, Cool-Can, 4" glass cowl hood, Hooker ceramic coated headers (which are awesome-cool to the touch within 5 minutes) sub-frame connectors, 12 bolt posi on 373 gears (had 410) and Flowmaster 40's. It is a mild "groundshaker" and is a fun Saturday night car. Interior is very good, all the chrome trim is present. I am making it a Yenko clone (but not a poser) maybe tribute would be a better description? Honestly I'm just making it as I like it. These are the only recent pics I have. (It does have the Yenko emblems on the fenders and trunk now) Will update pics over the weekend.
http://blueicehouse.com/n5ssi/IMAG0031.jpg http://blueicehouse.com/n5ssi/Nova%20Night.JPG http://blueicehouse.com/n5ssi/IMAG0044.jpg |
Re: Mayhems 71 Nova
Nice looking Nova. I bet it is a blast to drive.
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Re: Mayhems 71 Nova
Looks like that Nova can Rally some troops. Remember, your Nova will be a "Different Day 2" one day.
Where did you mount the MSD box? |
Re: Mayhems 71 Nova
It is currently on the firewall, just haven't moved it to a better location yet. My previous car (73 Camaro 427) it was mounted inside.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Nova Jed</div><div class="ubbcode-body">Looks like that Nova can Rally some troops. Remember, your Nova will be a "Different Day 2" one day. Where did you mount the MSD box? </div></div> |
Re: Mayhems 71 Nova
Here are a few pics from this morning:
http://blueicehouse.com/n5ssi/IMAG0051.jpg http://blueicehouse.com/n5ssi/IMAG0052.jpg Line in back window is wrinkled tint. http://blueicehouse.com/n5ssi/IMAG0053.jpg http://blueicehouse.com/n5ssi/IMAG0054.jpg |
Re: Mayhems 71 Nova
What size tires are on your Nova[front-rear]. Paul
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Little addition from the speed shop today. Little Chevy logo air cleaner topper.
http://blueicehouse.com/n5ssi/IMAG0058.jpg |
Re: Mayhems 71 Nova
Thank you for posting the tires,the car look's so good,I had to ask. Paul
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Re: Mayhems 71 Nova
No problem Paul, and thank you.
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Re: Mayhems 71 Nova
Good grief, that is friggin' awesome.
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The new model Holley "HP" carbs work very well and look good too.
http://blueicehouse.com/n5ssi/IMAG0178.jpg http://blueicehouse.com/n5ssi/IMAG0179.jpg http://blueicehouse.com/n5ssi/IMAG0180.jpg |
Re: Mayhems 71 Nova
The Nova looks great, how do you like the new Holley HP Carbs, is the idle quality greatly improved from the older version carbs.
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Re: Mayhems 71 Nova
Thanks.
I am still tweaking it a bit, as I replaced the plugs to a little cooler plug the day after the carb, and am in the middle of doing the plug wires. I had some trouble getting the right plugs, as it is an '80 Vette motor, with aluminum heads. There are several options, which include a shorter and longer plug. I ended up going with the longer one = AC Delco 41-602 gapped at .045. The old ones were gapped at .041, so it runs a little different now. But yes, it does seem to idle better, or at least make the cam lobe more of a gallop. I had it burning tires through all of first gear and into half of second before I changed plugs. Now I have to tweak it again to get it exact. I looked at the "Avenger" models with the pretty anodized body, but the HP version was more like a Dominator, with 4 matching barrels instead of the stock looking butterfly primary portion. The HP's have no choke, are mechanical secondaries, and are "street/strip" rated with an all business design. |
Re: Mayhems 71 Nova
P.S. "burning tires" into second gear on pavement equates to the picture at the top of this page for what it will do on a well treated track! [img]<<GRAEMLIN_URL>>/smile.gif[/img]
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Re: Mayhems 71 Nova
<span style="font-weight: bold">When you feel like running no hood.....</span>
http://blueicehouse.com/n5ssi/IMAG0175.jpg |
Re: Mayhems 71 Nova
I need 2 of these for 540 cu. inch Merlin engines on my Fountain Powerboat, I am looking for good idle qualty, Holley says with the 4 corner idle adjustment & new designed air bleeds that at idle it is more tunable and sharper, that is what I was curious about compared to the older version Holley carb.
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Re: Mayhems 71 Nova
My sister has an HP on her camaro, it probably 8 years old. It is def richer out of the box than a standard Holley.
The air bleeds make it a lot more tunable. If you are going to run two of them, you'll have to really look at the idle circuit. May be able to rune wiht a bleed, if they give you thant ability. When my dad and I tune the old 1850 600 cfm carbs for dual quads we would tyically put a small restrictor wire in the liquid line of the idle circuit in the metering block. |
Re: Mayhems 71 Nova
Mike, as you state, with the 4 corner adjustments, once you get the floats happy, they are awesome, and seem to be much more responsive and fine tuned than say a Demon.
They of course have the interchangeable power valve on the primary as well. <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: miket1</div><div class="ubbcode-body">I need 2 of these for 540 cu. inch Merlin engines on my Fountain Powerboat, I am looking for good idle qualty, Holley says with the 4 corner idle adjustment & new designed air bleeds that at idle it is more tunable and sharper, that is what I was curious about compared to the older version Holley carb. </div></div> |
Re: Mayhems 71 Nova
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Re: Mayhems 71 Nova
Looks like you're having fun with it. What is next, dealer tag frame?
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Re: Mayhems 71 Nova
Nah, I think I have reached my limit of "Yenko" titled items. The 3 badges and the dealer decal are enough.
I was toying with the idea of the white 69 Yenko stripe kit, but I think I will hold off. I have been having fun with it though. Now that I have a few sets of plugs and that new carb, this thing has got to be running 12.0's or possibly even 11.90's in the cool night air. It is running very strong. Timing is set for peak performance, not driving. I am getting the MSD adjustable timing setup so I can dial it in for normal or performance conditions. I'm lovin it! |
Re: Mayhems 71 Nova
I remember your post on plug gap and i see the MSD in the picture above. Is it working? I thought it wasn't a CD ignition, but an MSD has a capacitive discharge.
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Re: Mayhems 71 Nova
I guess I didn't catch the "capacitive discharge" reference before. Yes it is working great. I am very close to being confident enough to run it down the track a few times. But this likely won't occur until Spring.
It may still need an electric fuel pump. It was falling on its face at the top of 2nd gear, but that seems to have resolved with the new carb and plug gap change. I think the adjustable MSD timing control, and a new set of tires will be the final tweak. But since it's Winter, I will likely pull the trans and check things, replace the U-joints, etc. Safety check mostly. But overall, right now I am very happy with it, and almost positive it would carry the front wheels all of 1st gear on the track. |
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P.S. Getting deployed to the Texas-Mexico border for a week starting tomorrow (Monday), so attendance will be light.
Keep me in your prayers. Take care. |
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Re: Mayhems 71 Nova
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mayhem</div><div class="ubbcode-body">P.S. Getting deployed to the Texas-Mexico border for a week starting tomorrow (Monday), so attendance will be light.
Keep me in your prayers. Take care. </div></div>You got it! We have 2 in the National Guard here in Pa. so I know the drill. Be safe!! |
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Best of luck on the border, and thank you for protecting our country.
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Well, i'm not in the military. But 1700 pounds of pot in San Juan is off the street during our stay.
I'm back home and preparing for Christmas Eve travels to family (in-laws !#@%!) but still, family time. Hope everyone has a very Merry CHRISTmas and safe travels. Stay warm. |
Re: Mayhems 71 Nova
<span style="font-weight: bold">Pics from this morning:</span>
http://blueicehouse.com/n5ssi/IMAG03062.JPG http://blueicehouse.com/n5ssi/IMAG03072.JPG http://blueicehouse.com/n5ssi/IMAG03082.JPG http://blueicehouse.com/n5ssi/IMAG03092.JPG http://blueicehouse.com/n5ssi/IMAG03172.JPG |
Re: Mayhems 71 Nova
Rolling out of the neighborhood Saturday morning, idling around 20 mph.
http://blueicehouse.com/n5ssi/IMAG0357.jpg |
Re: Mayhems 71 Nova
Why so much fuel pressure?
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Re: Mayhems 71 Nova
I'll be interested to what you have to say Eric. I run around wiht about 9 psi on the street and crank it up to 11 while at the track to make sure the dual quads are fed.
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Not criticizing, just curious. I've always ran ~6.5-7 lbs and never had an issue as long as that pressure could be maintained, but I have seen issues with needle & seats with >8-9 lbs.
My $.02: volume>pressure |
Re: Mayhems 71 Nova
I found that if you some time use Viton-tipped needle that they will hold 13-lbs on the street. Hope this helps. But VintageMusclecar I found has never lead anyone incorrect. *Paul
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My Pro Systems carb. requires 9 to 10 psi because of the needle and seat package that Patrick installed in it.
Late on chiming in, but very nice car. |
Re: Mayhems 71 Nova
Thanks.
The psi is indeed high. I am switching electric fuel pump and regulator this weekend hopefully. |
Re: Mayhems 71 Nova
OK, been a little while. Swapped to the electric fuel pump, regulated at 7.5 psi, the other 6.5 goes in the return line. Doing better.
Had an overheating issue last weekend in gridlock traffic. Currently have the hood off, and have carved out the opening in the back of the cowl more so it can really breathe. I also added a Spectre cold air intake setup with dual snorkels and tubes to the front radiator core, pulling cool air in from the grill, but threw the bug catcher on while the hood is off. These are a couple pics from today, after 4 days of rain we were ready to get out and stretch. http://blueicehouse.com/n5ssi/IMAG0567.JPG http://blueicehouse.com/n5ssi/IMAG0568.JPG <object width="425" height="350"> <param name="movie" value="https://www.youtube.com/v/EbZQ9ofSvkw"></param> <param name="wmode" value="transparent"></param> <embed src="https://www.youtube.com/v/EbZQ9ofSvkw" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"> </embed></object> |
Re: Mayhems 71 Nova
Sounds good! [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img]
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