how much quicker will my car go after I switch out the 2.5 something rear gear,to a 3.73?
now this was in my '85,which has just a stock 305,it went 18.007 a few years back,but now its kinda my new toy.
I should know for sure by next saturday.
It will improve your 60 foot times which is were all drag races are won or lost. I would guess that it would knock about 1.6 to 1.8 of a second off your elapsed time; if the motor doesn't fall flat on it's face at the other end (it has a rev limiter built into the distributor, and the 305 was not known for it's deep breathing ability).