What compression ratio, that is critical (to guess is pretty useless, has to be measured to accurately figure horsepower). If you have stock style dished pistons, close to .10 below deck, your compression ratio will be about 8:1 at best, and your hp would be 330 or 340 hp.

Last edited by GO_Fish; 10/31/10 12:32 AM.
Scott B. "I'm a self-made man... I started with nothing, and I still have most of it!" 68 360 rusty B'cuda 'vert (GO Fish)13.59@ 98.72 mph 69 340 GTS stock 14.18@ 95.60 mph 01 5.9L Ram 1500 Quad Cab 4x4 01 3.5L 300M 16.23@ 86.97 mph