[PAUL K]

The results will differ depending on the combination. I ran a 2.75 first gear for many years. The car initially slowed down a tenth or so going to a 2.48 and another tenth going to a 2.20 gear set. My buddy had a bad fast RAIV headed combination and he found better results using a 2.48 and steeper rear gear compared to a 2.75 with slightly less gear. My brothers Firebird ran a bit slower with the 2.75 gear set. I'd think with your deal it will help do what you want, but I wouldn't expect to see much more that a tenth or so improvement. Are you sure the 60 ft can't be helped with some carburetor or plenum work.... That's a big loss you're dealing with.

[beemergary]

Originally Posted by PAUL K

The results will differ depending on the combination. I ran a 2.75 first gear for many years. The car initially slowed down a tenth or so going to a 2.48 and another tenth going to a 2.20 gear set. My buddy had a bad fast RAIV headed combination and he found better results using a 2.48 and steeper rear gear compared to a 2.75 with slightly less gear. My brothers Firebird ran a bit slower with the 2.75 gear set. I'd think with your deal it will help do what you want, but I wouldn't expect to see much more that a tenth or so improvement. Are you sure the 60 ft can't be helped with some carburetor or plenum work.... That's a big loss you're dealing with.

Thanks Stan. I did get .250 back from some plenum work but there's probably more to do. That open chamber they used not user friendly with my combo.