With a straight edge across the head, I get some variation of valve clearance. Some have 0.01" clearance and a couple actually protrude by a few thou.

So the only saving grace is my 0.05" head gasket. It doesn't seem like that's worth 11 degrees of rotation?

This head has been re-surfaced, but I don't think it's wildly different than original.

Last edited by Ott3r; 03/25/2020 7:10 PM.

'59 Chevy Suburban, NAPCO