Recently, I just did a compression check and found one cylinder reading a good 50 psi lower that the rest of the cylinders in my Z28. I put 5cc's of oil in the cylinder with a low reading and the psi increased from 120psi to 155psi, all other cylinders read 170psi. I'm not too excited to tell my wife the bad news But a man's gotta do what a man's gotta do! Now, I have a few questions for the rebuild. I plan to put eagle rods with hyperutecic pistions and balance the motor. I am wondering what will increase my horsepower best bang for the buck. I have a supercharger on the car running 8lbs of boost. I am contemplating putting a set of AFR's on the car and leaving the stock cam or porting a set of stock l98 heads and putting 1.6 exhaust valves in and a larger cam ( compucam 2032r). I have a good line on the afr's for about 1000 bucks. To get the heads and cam would cost me about 650. What should i do?

 

I will let someone else tackle the cam with supercharger question. I feel you should use a good set of forged pistons in there with that blower. Hypers won't take the detonation that you might get. I would also try to keep the compression ratio as low as possible and change the pulley for some more boost. 10-12psi will make that thing haul.

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91 Camaro RS 5.0L Black Convertible 700R4
** Added so far **
*GM Wonderbar,Alston SFC's,spohn LCA's and Panhard rod
*Turbo City Inj Spacer
*Dual Snorkel Air Filter
*March Performance Pulleys
*GM 3.42 Gears with OEM Zexel POSI
*Edelbrock headers
*3" High Flow Cat
*3" Dynomax Exhaust
*Walbro 255 lph Fuel Pump
***Future 330hp Vortec Crate with LT4 hotcam and 454 TBI