Hughes engines claims their hydraulic roller camshafts are compatible with standard drive gears.
Com Cams does allow ordering of their lobe profiles on a cam core compatible with standard drive gears, but I think you need to order it that way.
I have one brand new Comp cam that I bought from Summit. Looks like cast iron but says it requires a bronze or composite drive gear. To be safe, I plan to run the melonited Crane gear.
