Originally Posted by
Jtipsy
Gearing for a 8.5 motor. Smaller track 100 x 40 small jumps on layout.
I started with the recommendation here:
http://www.durangofansite.com/main.p...0&page=gearing
from there see where you top out down the longest straight and adjust, and check temps. that shoudl get you where you want to be.