He's building a 446, which I assume to be a bored 440, nonetheless a larger displacement engine, especially with a longer stroke will be more forgiving of larger cams.

Point is my 60 over 413 was 20 inches smaller, same stroke, than his 446. Your 493 was 47 inches larger and what's the stroke difference?

Personally, I think his bottom end will be soggy.

They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.