I have a 350 2 bolt main,from a 74 corvette. Edelbrock performer rpm heads 64cc and performer rpm intake , carb to match, edelbrock performer cam (not rpm). I put about 1000 miles on it and spun a rod bearing !!! Time to do the bottom end, I have a rotating assembly in mind from SPDC. Any info on this idea would be appreciated. pro or con, should Iiii go with a different cam ? What kind of HP am I looking at ? O yea, I am going .030 over on the bore and $1500.00 is my limit. First timmer on forum, Thanks Roger.