Putting a different manifold on my 408 for the fuel injection. My heads were milled .010" when they were getting ported. Do I need to have the new intake milled to fit, or should things line up fine since it was only .010"?
Gasket match the ports, set it on the engine and check. u may need to drill the bolt holes out 1 size bigger. being mindful of the diff the gaskets will make, if not used for checking.