cant get bolts in intake

Adam, below is a quote from Larry Shepards book ' How to Hot Rod Small Block Mopar Engines'.

Quote:
If the deck surface of the head is machined, the intake must be machined as well so the manifold will fit properly. This numerical relationship is the same for all A engine heads. Basically, for every 0.010 in. milled off the head (or block), mill 0.0095 in. off the intake surface.

End Quote

Hope this helps, Mike