High Performance Cam designed to be used on a stock bore motor with a stock Head or a Port and Polished Head, 1070cc-1200cc engines. You will  need  to use adjustable cam sprockets (sold seperately).  We will install adjustable cam sprockets at NO CHARGE if both are purchased from us. We will also tack weld the end of the cam to the adjustable sprocket to ensure that they don't slip when installed. (Be sure to request free sprocket install and weld service).  You will need to degree the cams. RC's Performance can provide lobe center recommendations.