I gotta 71 chevelle and a 400 bored 30 over sbc. I have a th-350 tranny and I bought a B&M shift kit. The motor is pushin about 400hp and the car is an everyday driver. I don't know about the compression or cam or anything like that. The rear-end is like a 3:07 or close to it. real high. I think this will keep my rpm's down. My question is should I put the RV/Heavy Duty or The Street/Strip in? I want it to run like low 14's or mid 13's if possible. What do you guys think I should do? All info appreciated!
