Harry Mann 68 L78 / L88 Camaro

[napa68]

Originally Posted by luzl78

You need some m/t super scavenger headers on that beast. What a sound that would be.

No doubt.

Like most every header I have ever installed, they need their "love taps" to fit properly. The Hookers had all the proper little dents for an effortless install (which is still a PITA on the left side).

[dykstra]

Sounds AWESOME! I can’t wait for the drive video!!

[dykstra]

This beast is a bad mother……..shut your mouth!! LOL

[napa68]

Here is the exhaust fitted and tacked.

I was welding the scraps from this together yesterday to dial in the settings, and was happy with the way working and how it looked. I was able to use the original rear hangers on the rear of the mufflers. I'll replace those with some reproductions and save the originals for another day.

I must admit, I think I created my own problem for welding it up. I was always in the habit of greasing the pipes at the joints so I could get them to sit just the way I wanted. Didn't even give it a thought Today, the welder is poping a farting like hell wont have it. No adjustments made an improvement (no surprise).

I have a couple of ideas to move forward. Not excluding the idea of a local fellow who is one hell welder.....including TIG. I just may enlist the help of a professional to get the results I want.

[TimG]

Great work, Tim.....

[Too Many Projects]

Use aerosol carb or brake cleaner and spray it right in the joint and blow immediately to clean the grease out.

[big gear head]

Be very careful with brake cleaner. There are many cases, including me, of people having lung problems after using brake cleaner and then welding. Look it up.

[napa68]

Originally Posted by big gear head

Be very careful with brake cleaner. There are many cases, including me, of people having lung problems after using brake cleaner and then welding. Look it up.

Exactly why I didn't!!!!

[big gear head]

Most welders prefer acetone for cleaning before welding. That's what I use now.

[napa68]

The tires I placed on order over 6 months ago finally came off of backorder. The G70-15's were my first choice over the L60's. I always kinda felt the L60's look like 10lb's of sh!t in a 5lb bag.

So, I got those mounted and balanced.





Back to the distributor conversation. I had installed the 170 distributor with 38 degrees total advance. Honestly, it seemed kinda soggy even after a bunch of fiddling. For grins, I put the Roto-Faze back in with the advance curve locked. In hindsight, I can see why it was locked from the get go. It starts better, the starter does not seem to mind it, and overall crisper. In hindsight, I am not surprised. The ZL1 cam is an antique, and probably does not have a ton of cylinder pressure while cranking.

After getting the ignition to where it's at, I still had some dripping fuel from the primary boosters as idle. I fiddled with the secondary throttle blade adjustment and that allowed me to close the primary throttle blades some more. That, included with lowering the primary float level 1/4 turn solved the dripping boosters. It also in turn, allowed me to idle the car down to 1000 rpm and the primary mixture screws proved to be a bit more responsive. I settled on an idle at 1150 rpm as it seems a little stable.


You could say I put the "goon tune" on the car now that the exhaust is installed. I suppose the car is finished for the most part, til the weather breaks in spring and I can road test

The sound quality is kinda crappy as I used my phone for this.