That cam is most likely going to be ground on an austempered ductile iron core. A stock-type iron gear will work fine with it.
The problem is if you call Comp and ask them, depending on who you talk to, they may mistakenly tell you it's a billet core requiring a melonized or bronze distributor gear.
That’s what I’m worried about. I believe that the magnum oil pump gear utilizes a steel gear where the LA used the iron gear. Regardless I have both, I’m going to try to do some research to see if I can find the material of the cam.