You may have to take the manifolds and get them resurfaced so they're flat across the ports. Check with a straightedge (carpenter's square, etc.) Do you have the intake to exhaust bolts torqued? If so, you should loosen them and try again. They should be tightened after the manifold to head bolts are snugged up.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
