hey i have a 93 Z28 with an LT1 in it. I have exhaust, a custom racing transmission with a 2500 stall speed, headers, gears, and a chip. Im looking to put a s/c in but not do any mods to my internals. Which would be the best s/c to buy to get the best performance out of it? thanks

 

Vortec S-trim with 6# boost. Any more than that and you're asking for it with the stock internals. I'm not sure about ATI units, I'm a Vortech guy, but I'm not nocking ATI.