As long as you didn't build it with some trick low tension ring package I would just pick a flat tappet cam that suited the intended use and go. A single plane on a 500 cube engine won't be a deal breaker on the street. My 9:1 493 makes over 500 ft/lbs from 2000 to 5000 with a peak of 600ft/lbs@4000rpm. I'm running an MP509 108 LSA hyd cam and an M1 single plane.

Kevin

Last edited by Twostick; 02/16/12 10:45 AM.