Just posting this for the bigger “pinch” crowd. If you look closely at the one picture you can see where I slightly as planned kissed my brass tube. Doing this, pushing the common wall over, and raising the roof to the Edelbrock gaskets slowed the airspeed down from a pegged 401 fps flowing 260 cfm to a 375 max airspeed flowing 290 with a 2.02 valve. Same pinch will go 308-313 with a 2.055 valve, and 325-330 cfm with a 2.08 valve. There’s still material left to play with if I needed it but I don’t.
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