68fastback
Well-Known Member
68 Barracuda 8.75. I am going to spend 40% on street and 60% strip. I have 3.23 now and want to change. Is it better to go with 3:55 or 3:91's. I will be running 235/60R14 with a 360 and a 727.
Oh, I have 225/70/14 tires and a standard A 833 4 speed
if you have a 4speed go with 3.91.. i have 4.10 with my 904 and i love the throttle response
If your mostly racing and NOT doing much hwy driving go as low as you think the combo will allow. But if you do intend on driving it on the street 3.73 is as low as I'd ever consider with those short tires. Remember tire height has alot to do with final drive gearing. Your super short 25" tires with a 3.91 gear is about like a car with 28" tires and a 4.30 gearset.
I never thought about that. I should try to find a taller tire.