Any piston to valve clearance prob with AFR 165's?
 

I have a set of Windsor Jr's im selling which had 1.94 intake valves in them. I didnt want to go any past .510 lift in fear of a valve saying hello to a piston. Im buying a set of AFR 165's which have only 1.90 valves. Im going to put a set if 1.7 rockers on this cam I have now which will bring the lift to around .540 with .218 duration @ .050. Will there be a problem with a stock piston or will it be safe??:confused:

That combo will be good, We have a car with a set on a stock bottom with a HR266 it it with the factory 1.6s on it also. It works fine.

Nothing to worry about with that cam, as long as the duration is 230 degrees or less measured at .050 lift, even with Trick Flow Twisted Wedge heads, you could have as much as .600 lift if the duration is right. Remember it is WHEN the valves are open NOT how much the valves open.