This is as good as it gets. These are the numbers i got with clay when i built the motor using the flat tappet installed at 105.5, .160 intake, .230 exhaust. Now cut head .045 and a .010 smaller head gasket = .055 less clearance. I also noticed once i got the head off, the intake valve is not centered in the valve notch and was touching on the right edge of the brow. I think alot of my numbers were skewed because i was not getting the degree wheel zeroed. I bent two piston stops just trying to find top dead center. I will never attempt a cam change in an engine with the heads on. Its just too hard to get accurate numbers. With head off i use a bridge with a dial indicator and a lifter tool that inserts into the lifter bore with another dial indicator. I will have to measure the exhaust valve and get one ordered. Does brand matter, because i have no idea what brand valves are in these heads?