Is Moroso A-B epoxy good stuff? Anything better?

These magnum heads have a ridiculously large pushrod bulge, way bigger than the LA heads. Wish I had a before pic to show you! I was just trying to do what I could to help them breathe, from what I have read/studied pictures/etc. Its my first set of magnums, I guess I was also curious to see what I could do lol. The smaller hole was an accident, but the bigger 2 was just me getting too greedy haha.

I didn't think you were downing anything, besides, I like criticism, good or bad, gives me something to learn from!