And the picture above would make sense if he was using a roller cam and some aftermarket rockers perhaps... But he's using a flat tappet and all stock parts and there should not be any interference unless he's using a 6000 lift cam.
I've never had to ground the heads like that for anything other than a taller roller lifter.
It's a roller block that he is using a flat tappet cam and hopefully 5/16 pushrods ...because anything bigger would be overkill for what he's doing.
Maybe the op is using pre bent pushrods.
Did he angle mill the heads, again? Lol
This point I feel bad for the guy, money's just pouring down the drain
