With a bit of port work and nothing done on the plenum, the intake manifold ports are all now flowing between 292-306 cfm.
So now we are waiting for the 3/4" thick aluminum plate to show up so we can make the adapter to fit down inside the manifold carburetor base. I'll make 4150 adapter .450" deep that reshapes the plenum opening and at the same time raises the carburetor .300". It should give me a good blend into the ports.
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