Headers are hooker, exhaust is 3" all the way out true dual, no Cats.
After further research, I have discovered that what the vacuum gauge does is normal so my mind is a bit more at ease there. I did however learn that for higher elevations will cause lower readings on the gauge. Anyone know what the specifics are for say the Mile High City? I'm going to pull the carb and blow the metering blocks to make sure there is no trash there, throw on a new gasket for kicks and see if any of that helps. The only other potential issue I could find for low readings is cam timing. Once again it wakes me wonder if I should just throw a new cam and lifters in. The cam was in it when I got this motor, the timings gears are double, and there was absolutely no slack in the chain nor was there any chipped or broken teeth. I know now the Harmonic needs replaced and intend to order maybe a TCI rattler or something similar. Now because I am new to this whole gig, exactly what determines cam timing? Anyhow .... back to the garage for some more playing. Thanks for all the ideas so far guys