Quote Originally Posted by gobme
I have 3.9 in 9 inch diff
weight of car is (estimat) 3900 pounds.. still at shop geeting cage
Another thing to think about is a cam that works well with 15 psi. won't work very well with 30 psi.
I can tell you that at 10lbs. of boost we had a 496 with a mech. roller cam that was .680/.680 lift,the duration was 260/274 at .050 and it was cut on 112 L/S/.
I would have to look for sure but I do know it made over 700 hp at the flywheel on premium pump gas.