Hey guys. So I'm putting together a pretty basic street motor. 350 small block chevy, flat top pistons, rebuilt LO5 heads w/crane valvesprings, crane gold roller rockers, one piece chromemoly pushrods, comp thumpr cam (HYDRAULIC FLAT TAPPET), proform gear drive, holley 650, low rise dual plane aluminum intake, and headman headers. No biggie.

ANYWAYS, this question pertains to the gear drive installation. So I went to install the timing cover, and noticed that the axle for the power gear needed to be ground down quite a little bit to fit behind the cover. So I ground that down on the backside till it fit with just a little clearance. I at that point noticed my black proform timing cover was hitting the cam button where the chevy bowtie was stamped into the cover lol. So I used a proform chrome timing cover (the bowtie was stamped outward rather than in), and it seemed to fit perfectly. Hours later, now that engine is all put together and ready to go in the car, I noticed that the timing cover is actually touching the cam button. You can tell by knocking on the timing cover where the button is at that it's pressed up against it, but not real hard, just a little.

My question, is basically, is this ok? I know most people would say "no, it has to have 0.005" to 0.010" of endplay", but keep in mind this is a FLAT TAPPET cam, NOT a roller cam. The engine has the cams lobe angles and the load on the distributor gear from the (high volume) oil pump pulling it into the block, so there's really not gonna be much if any forward load on the cam button.

So will this bad lad wear itself some clearance safely or do I have to tear this bitch back apart?