Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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#1
07-03-2002, 02:22 PM
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Re: Hesitating Holley
Hey bbdon;
Thanks for the info, if it was set up for me - I have changed it several times already!! None of the other adjustments seemed to set up, so I just figured the acc. pump wasn't either. I will find my third hand and check it out, after I change the jets, examine the squirter, and .... [img]/ubbthreads/images/icons/confused.gif[/img]
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Marlin 70 Yenko Nova-350/360, 4speed M21, 4.10 Posi (Daddy's Ride) 69 SS Nova-396/375hp, 4speed M20, 3.55 Posi (Benjamin's Ride) 67 RS Camaro-327/250hp, 2speed Glide, & 3.08 Open (Danny's Ride) 
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#2
08-27-2002, 09:35 PM
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Re: Hesitating Holley
Had a little bit of time now that the NNN show is over to tinker with the Holley. Schoneye and COPO PETE were both helpful. I put the white pump cam in, made sure I had the '31' squirter, changed the secondary spring, rejet the primary's, and most importantly, rerouted the vacuum lines from the carb/dist. advance. That stupid TCS stuff was messing up the advance.
The hesitation is practically gone, but it still lacks the super strong midrange power it had before. So, the only thing I had before that I didn't re-install is the blocked power valve on the secondary side with '82' jets. They are on order, so I will install and retest, will let you know [img]/ubbthreads/images/icons/grin.gif[/img] Thanks for the tips!
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Marlin 70 Yenko Nova-350/360, 4speed M21, 4.10 Posi (Daddy's Ride) 69 SS Nova-396/375hp, 4speed M20, 3.55 Posi (Benjamin's Ride) 67 RS Camaro-327/250hp, 2speed Glide, & 3.08 Open (Danny's Ride)
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#3
06-02-2003, 01:21 PM
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Re: Hesitating Holley
It's taken me a while to get things changed around on my carb! But, it's off the car and I'm changing the jets etc... Pete, or others, do you use a blocked power valve in the secondary side? What is the advantage, if any, of doing so?
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Marlin 70 Yenko Nova-350/360, 4speed M21, 4.10 Posi (Daddy's Ride) 69 SS Nova-396/375hp, 4speed M20, 3.55 Posi (Benjamin's Ride) 67 RS Camaro-327/250hp, 2speed Glide, & 3.08 Open (Danny's Ride)
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#4
06-02-2003, 01:58 PM
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Re: Hesitating Holley
Marlin, if you block the rear power valve you must increase the rear jet size 6 to 8 jet sizes to compensate. The power valves job is to keep mixture lean while crusing and richen when accelerating. However since the rear barrels are either fully closed or fully open on the dragstrip, there is no need for a variable air/fuel mixture. The advantages to blocking the power valve are that the power valve now can't stick closed and cause a lean condition, and won't blow out and leak if you should have an intake manifold backfire.
You gonna go to Norwalk? [img]/ubbthreads/images/graemlins/  [/img]
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...................... John Brown This isn't rocket surgery.....
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#5
06-02-2003, 02:03 PM
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Re: Hesitating Holley
John's right on all counts. But, I'm running both my power valves...is that best? Probably not, but it's worked ok so far. As for blowing it out, I did the backfire protection piece that Holley sells, so that isn't a threat. I'd like to block the power valve and try it before Norwalk, but I'm running out of time. So, should I keep a lookout for a Gobi Deuce when I'm there?
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