I put a set of Andews cams, V-438, part # 268450, in my 2004 Vegas. At the same time I switched from Longshot drag pipes with stage I mapping to 2 into 1 exhaust, and Ness performance cone air filter. I am extremely impressed with the preformance. I rently ran against a 100 inch stage 1 2009 Kingpin and spanked him hard.
This cam modification doesn't require changing valve spring or modifying piston to value clearences