[markjohnson]

I don't know if you have Roller rockers or not, but just in case you do, it is much more accurate to slide the feeler gauger in from the side to prevent the roller tip from rolling and giving an inaccurate measurement. Something else I've always wondered about is if anybody else here feels that you lose some of solid lifter sound (that "clackity" sound) when you upgrade to aluminum roller rockers. It's always seemed to me that the thick aluminum body of the roller rocker possibly dampens that particular sound. Anybody else ever pick up on this or is it just me?