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I think both these test will help reveal helpful info...

The leakdown tester will probably best reveal what your problem is here...but the compression tester will give you an idea though of how...

and LSx's are kind of played out in the older camaro....

Mark, you've got a very good starting point too...no need to get new headers, radiator, ignition, etc, etc, etc...

Stick with the 383....

I believe camaro's of this era did use 12 bolts, but I'm not sure what mark had originally...I'm pretty sure his was a lo-po 327 car originally with a 2 speed powerglide...so likely had a different...

OPTIMISTICALLY we were looking at 420-430hp at the crank...which should put him on the low side assuming 20% loss 336hp and high side assuming 15% loss 365hp...which is why I guessed 350hp initially.

I don't know...I mean, say the engine is making 400hp crank and he's losing 20% to drivetrain losses (why people assume 15% irregardless of the type of trans and torque converter, rear-end, etc, I...

It's probably a little of both...but I do think it should be making 350 to the wheels.

I had always guesstimated that the crank HP should be b/w 420-430hp if built correctly.


The AFR's 195...

If power numbers were still climbing at 5800rpm, then this likely bodes well for being on the higher sides of the guestimates.

350hp/380ft-lbs of torque. I always figure conservatively with automatic trans and higher stall speeds T/C's.