ProComp/Speedmaster aluminum heads

yellow rose said

The picture is throwing me off. The WP pulley looked smaller to me. Damn glasses.

I have the CVF Pulleys but somehow they dug around and found a WP pulley that is 6% overdriven and that’s what I bought.

I want to get something in the 12-15% overdriven size if I can.

Click to expand...

I think the deal is there calling mine an overdrive because the drive pulley is actually bigger than the factory one buy 1/4 inch... Both are now six and a half inches across. The single groove pulley Factory is 6 and 3/4. Now my March performance one is 5 and a quarter inches and it's an underdrive. Giving more easier RPM to the motor...