What alternator for Eddy heads?

I ran into some issues lastnight with my alternator(2 wire).The clearance with the M/T valve covers,Eddy heads is giving me adjustment issues.I shaved abit off the back of the alt.but am still having problems.I had no issues with the stock 360 and the alt.Is there a smaller one?Maybe a GM?This is for my mostly race car and still need lights and such.Any help,pics will be helpful.Thanks