What gears to run?

MidTexCuda said

What is the current tire size? How high can you spin the motor and still make power. Where does the car like to shift now? I am not the biggest mopar rear end guy but I am sure you lost some speed from the 8 3/4 having heavyer parts. I am guessing your MPH is around 102 and if it is your current gear with a 25 to 27 inch tire is around 3.80 to 4.10. But I could use a little more info.

Click to expand...

Good call, I trip the lights at 101 mph. The current tire size is a 245/60x14. When i go out to the garage later i'll get the height of the tire then.
I can spin the motor to 6 grand but thats a little tight so i backed it down to 5700 and seems to like it there too.

I have people telling 4.56's and i have seen some bad a$$ times from 4.30's as well.
Im sniffing around for low 12's out of this thing.