What would YOU do with a slant six?
You will see the most gains in the head. Porting and shaving the mating surface. I have 0.100" taken off the head, I ported the snot out of it, clifford 4bbl intake(Hyper pac isnt much good for daily use the runners are too long for low speed operation), clifford shorty headers Yed to a single 2.5" pipe to a 2.25 in and out cherry bomb turbo muffler and 2.25" pipe out the back. It sounds really mean. with a stock cam, torque converter and , 3.91's in an 8 3/4 it runs high 15's in the 1/4.
You will see the most gains in the head. Porting and shaving the mating surface. I have 0.100" taken off the head, I ported the snot out of it, clifford 4bbl intake(Hyper pac isnt much good for daily use the runners are too long for low speed operation), clifford shorty headers Yed to a single 2.5" pipe to a 2.25 in and out cherry bomb turbo muffler and 2.25" pipe out the back. It sounds really mean. with a stock cam, torque converter and , 3.91's in an 8 3/4 it runs high 15's in the 1/4.