[phk1967]

Hello everyone, I have a 68 gto with a rebuilt ys code 400 in it. The engine has pretty much everything stock (including compression) exept for the cam and rocker arms. It has 1.52 roller rockers with a Crower 60242 cam. The duration of the cam at .050" lift is 221/229 (INT/EXH). The car also has a Th400 tranny with a 500 higher than stock stall speed 12" converter. The car is running a 2.93 open rear end on 225/70/R14 tires and was planning on getting a gear swap and a posi. The car is only driven on the streets in my local area, car is never on the highway. The highest speed limit is 50 mph. I was wondering if I should get 3.55, 3.90, 4.11 or 4.33 gears. im looking for max acceleration, The car right now is a dog off the line and has traction problems since its an open rear end.