I'm going to pick up on what moper said. Aftermarket roller cams will eat a stock distributor drive gear. Solution? I'm staying out of this one as I'm not sure there is a long term solution available. :popcorn:
I have had a steel ,or cast drive gear in my car for about 10ish yrs , on a compcams billet solid street roller , actually this is the second cam I`ve had it on, had to downsize the cam for the map reading on my fuel inj. .
Hughs engines have had them for a log time , someone else has them too and calls them melonized steel , I think---------