I am installing a cam kit in a motor that uses 'top hat' type seals on the intake valves.They are stock replacement seals like the originals that came on the heads and I've never put a higher lift cam in a motor that used these. They look like they sit pretty high and I want to measure to check clearance.Here's what I have,hyd.cam 465/488 lift,1.5 roller-tip rocker with long slot,k-motion spring that says good up to .500" lift with coil bind @ 1.050",375#@1.150 open,stock length pushrods.I think I will have a good safty margin but having never rebuilt a motor with these type seals I would rather measure.Will I be ok or will I need a telescoping mic,dial indicator,to measure or can I put it together and use a feeler gauge or calipers? When the spring says,"good up to 500 lift" does that include using 'top hat' seals?