My question is not the pump but what is everyone using for the oil pump driveshaft.
Roller cams use a different " melanized " pump drive shaft gear where can they be bought? Or is everyone running Milodon 21535 bronze gear or using the stock one out of the existing motor.
Is something else available?
I would ask the cam manufacturer what gear material is compatible with the particular cam you are using. Most magnum builds are using the stock shaft with roller cams.