Would it be okay to use part# cca-7808-16 with a gm847 cam and stock heads or do need a $80 pushrod cause the cam is to radical.

 

I'm in the same boat. I was wondering the same thing, but my cams a cc306. I have been running stock for the past 3 years and have been meaning to change them forever. If they are harder i cant see it hurting it since the stock are still working in mine.