Hello,
I am getting my 292 rebuilt and took a the intake, oil pan, valley cover, fan, and a bunch of misc brackets to be powdercoated.  I also took the bellhousing in to be done.  The surface where the manual transmission mounts and the surface that mates to the block were powdercoated- am I asking for trouble if I mount everything up as is, or will the (potentially uneven) thickness of the powdercoat cause alignment issues?  I'd rather not break out the wire wheel but if the consensus is that it will lead to problems, I will.  Thanks!