i recently bought a 3.23 posi rear-end and was wondering if i should move the gears up to 3.73 or 4.10's i whave a 350hp 305 and want to run in the 13's i have not gone to the track yeat and my car still has the stock 2.73 non-posi rear
thanks

 

You might want to consider what Matty (hehe) has to say on this topic.
https://www.thirdgen.org/messgboard/...ML/005007.html

 

what kinda setup do you have for your 305 to be making 350 horsepower???