Valve to piston clearance

Brian6pak is correct!
If your exhaust valve is hitting before the intakes, your cam has not been properly phased in with the crank. and is most likely in a retarded position. (not the owner, the cam!)
The Int valve is a larger diameter valve and will always hit the piston before the exhaust does. (when the cam in installed correctly, or even straight up, or 0)
The cam card shows the cam in 2° ahead. (advanced) This makes the Intakes even closer to the piston at TDC.
The short of it.... slow down, double check your cam position, and decide accordingly.
If you find you need deeper valve releifs, Isky sells 'notch cutters', so that you can perform notches with the engine mocked up.
BTW, a .060 gasket will reduce your CR by more than a point..
also too. gross valve lift has absolutely NOTHING to do with how much valve clearance you will have, that is a function of duration at .050. (the valves are full open when the piston has swept waaaay down the cyl in crank degrees equal to the lobe centers.