This is a point in engine building that requires extra care. An error here, even if you're just turning the engine over by hand, can result in bent valves and/or pushrods. Cams with earlier opening intake valves can hit the piston before TDC.
So If the engine is assembled with the head on and pushrods installed, back off all the adjusters a good 0.080 except the one you are checking. Then with the degree wheel velcroed onto the front damper and some sort of pointer rigged up, approach TDC carefully watching the degree wheel and pushing the intake valve down with a suitable lever. With the cam listed on the card you may find minimum clearance at about 10 deg. BTDC or some similar number. If so, stop there!
At 1 deg before TDC you will have 0.050 valve lift minus the running clearance, if that's included in the figures. A recommended minimum is 0.060". So keep checking as you approach TDC to ensure you don't go below that. My engine has 0.050 and I got away with it but that leaves little room for error in thinner head gaskets, future head resurfacing etc. My cam is ground 4 deg. advanced which adds to the problem. Yours is ground 0 deg advanced and I would not use an offset key to change the cam advance; nor would I attempt to raise the compression ratio to get a little more bottom end. Change cams or just live with the lack of bottom end torque.
