I already Have a 8 3/4 rearend with 3.23 gears Im putting in once i have the 360 finished. Its a factory 4bbl and he gave me free long tube headers with em as well. The only thing I'm missing is the 2.5 exhaust. Im thinking about putting a 340 Intake on it with a holley carb and a msd dist. I was also debating on putting the edlebrock timing chain. also I'm thinking about putting J or x heads on them what do you think?