Your cam is developed to run at a higher RPM to create more top end horse power. A lower geared rear end will get the vehicle to that RPM range quicker, with a higher geared rear end it takes longer to reach that RPM range.
Your cam is similar to my cam in my 327, it's meant to have more top end horse power with the sacrifice of low
end torque. It takes a higher engine RPM to move the truck.
A lower gear would give you the performance the cam will designed for and the higher geared overdrive would allow you to cruise at highway speeds.
Last edited by TUTS 59; 08/17/2021 12:06 AM.
