bdierks

So now that I've got my beast running. I've driven it a couple times. Maybe it's just me, but it feels like it drives pretty slow. Like top speed would be around 50-55. It has a 300 six. With the original 4 speed with the granny gear. Would this be caused by rear axle ratio? Or transmission?

Chris_1

iTrader: (1)

If you have really low (higher number) gears, the motor would be wound right up by 60 miles an hour.
Check if there's a tag on your rear diff still, or jack up the back and see how many times the driveshaft turns for the wheel to go all the way around once (3 1/2 times will be 3:55, 4.1 times will be 4:10 etc)
Something like 3:55 or 3:73 gears you should easily get up to 90 - 100 mph.
And listen to it - it won't go any faster because the motor doesn't have enough power, or is it because it's wound right up and won't rev any higher ?

Matthew Burr

if it's not advancing timing you could be flooring it and not get much more than that too. would have a real hard time going up moderate hills etc. what year is it? have you done any modifications to it otherwise?