I'm going to be only running pump gas for quite sometime at 10, 14 and 16psi. the motor is 9.5:1 with ported heads, 98 cobra intake cams and a ported mach intake. The car has a solid axle and c5 automatic. I'm torn between 3.55 and 3.73's. I want the quickest 1/4 set up possible but don't want to be strong from a roll as well. I had 3.55 before, but I think 3.73 would be better because I'll be limited on power by only running 93 octane. BTW the turbo is a masterpower 76q trim with 1.00 a/r. Let me know what you guys think!