Well, I set all the lifters at 0 lash + whatever preload I could get just to triple check P/V clearance. All good. Decided to check valve lift. Not super accurate, but used a digital caliper against the spring and edge of cup. .719" intake, .687" exhaust. Uhh, but the cam with the 1.7 rockers were supposed to be closer to .767" I and .715" E. Go to book. Looks like I got 1.6 ratio rockers, not 1.7 that I was told. Well, I can run the engine up like this, but with the lift I now have, I know my springs are all wrong. My choices are to swap springs or swap cam. The engine will never make the power I wanted with the valve lift it has. Plus, I've been told my cam is a little small, anyway, for my 500 (269/276 @ .050"). What to do?