Preparing to trim excess intake gaskets on my fresh 390 build, and I see the manifold does not line up at the gasket rail on the passenger side. Front and rear are off by about the same amount, measures to appx. 2mm, the driver's side is spot on and the distributor is lined up.
I'm looking for a solution, not trying to break down what could have gone wrong... It's a used Streetmaster, so perhaps a previous owner milled it poorly, who knows. Can I shim the gap with gasket material, shaved to fit? Try to seal it up with RTV? Open to suggestions please.
I do have a C4 cast iron 4V intake sitting in the garage... all 80 pounds of it...