how much difference between 3.91 and 4.10

cosgig said
Allow me to chime in!! I had a 3:23 suregrip in my bone stock 67 GTX 440 auto, and my best time down the 1/4 was 14.06. OK for a bone stocker but I wanted more so I swapped in a set of 3:91's. Guess what!! Except for the time I had to pedal it and might have broke into the 13's, the 3:91's did little to no good for my E.T. I'm with the guys on this one, unless big smoky burnouts are your goal, stick with the 3:23. There is a reason Chrysler referred to that gear as their "Maximum Performance" ratio!! Party on, Geof

i hear ya there. djvcuda has a 3.23 in his cuda. has dropped intot the mid 12's in the quarter and can cruise it any where. one of the biggest improvements he made was going from a MP 175K converter to a dynamic 9 1/2" converter. motot turns like 400 rpm less at cruise speed and at the track launches way better.