I have a 2003 BMC chopper with a stock REVTECH 100 and a Mikuni carb. I'd like to add more horsepower. I don't know what cam it has, it's whatever REVTECH is using. Does anyone have any suggestions on what headwork I should pursue, polishing, porting??? What cam should I change to, I do both highway and city driving, about 50/50. | 
