You should not have any problem with piston to valve clearance, you piston is 1/8" (0.120") below the deck at TDC, and as mentioned, duration is what reduces P-V clearance. The maximum lift will occur around 108 degrees after TDC (depending on where you degree in the cam centerline), so the piston will be more than 1/2 way down the bore (well over 1-1/2") at that point.
The two places that lift might be an issue is valve spring coil bind and retainer the valve guide seal clearance. With these small cams (under 0.550" lift) neither of these clearances should be a problem.