I am planning on buying some new heads. I'm looking at the GT40x heads. http://www.americanmuscle.com/frpp-turbo-swirl-gt40x-head-58cc.html or
http://www.americanmuscle.com/frpp-turbo-swirl-gt40x-head.html
I am curious at the difference between 58cc and a 64cc.
http://www.americanmuscle.com/frpp-turbo-swirl-gt40x-head.html
I am curious at the difference between 58cc and a 64cc.