piston to valve clearance

[surfsup]

Earlier I posted gt 40 heads on a 86 block, well I did the clay thing and it’s doesn’t seem to be the most reliable way of checking, I don’t have a vale spring tool or light duty springs, or access to one to replace the springs with lighter ones,, so this is my question, I installed the right side head with the used gasket and the number one rods and rockers, I spun the motor over several times by hand with no signs of interference, is it save to assume I wont have problems? I don’t have a piston notched tool, what I do have is a 4 inch grinder a dermal and die grinder that I could use to notch the pistons a little, but would rather not
Stats: 86 bottom end flat top pistons, E cam, GT 40 heads 1.94 intake 1.64 exhaust, 1.6 roller rockers, rpm manifold.