i'm about to buy a 91 firebird formula with the 350 tpi in it. the car has a shift kit, and i was wondering what rear gears i should go with. i'm planning on (eventually) putting in a holley stealth ram and maybe a supercharger.

 

well it should have stock 3.23's in the 10 bolt now. i would see what it does with those right off the back, but u might want to look into 3.42's for a good overall gear for track,street,highway.

 

ok, thanks.