Hey guys looking for someone with a similar combo who can suggest hp/tq and quarter mile time. I purchased a 1988 GTA 5.7L with S/R I-052 cylinder heads accell lower TPI intake with SLP runners adjustable fuel pressure regulator bigger injectors k&n cold air intake headers trans has a shift kit and pretty sure it has a custom chip. I have no info on the cam. The guy I purchased the car from was advertising it as all original he had bought the car years ago this way. He couldn’t even tell me if it had headers or manifolds to give you an idea of his knowledge of the build. I had a second Gen with a 383 and the S/R heads with a xe274h cam and it would run 12.2 @ 110 all day long. I would be super exited if this would touch twelves but I don’t know if the TPI is up for it. Anyone with a similar head intake combo that can give me an idea of the numbers would be great!

 

Since it's still a stock MAF car, just get an ALDL setup and record some live data. Your MAF grams per second is about equal to your HP at the wheels. Multiply by 1.2 to get approximate crank HP.

Or hit a dyno, spend $100 on a baseline and get the number that way. Going to be nearly the same but the Dyno will give you the fancy graph printout.

If you're near my shop in Portland, OR I can run it on my DynoJet.

GD