Holy Roller
Well-Known Member
I'm building a 383 thats been bored 30 over with 516 heads.And I'm putting it in my 68 barracuda for street use,possibly some street races. I am going to use Comp Cams Thumper series cam or Extreme Energy. What I need to know is the benefits. ..other than cost, between flat tappet cams and roller cams? And if anyone has any opinions on the Thumper VS. High energy. Your knowledge and help is greatly appreciated. Thank you