I am currently running a Holley 750cfm in my 63, 409, 340hp. It is pretty stock, never been rebuilt. Petronix ignition in a marine distributor. Stock exhaust manifolds. Steel intake. Electric fuel pump. My question is , can I go to a lower cfm and still have the performance or will it hinder it by starving the engine of fuel?
I forgot to mention also about the vacuum, I need it for my power brakes, will that change with a smaller carb?
I forgot to mention also about the vacuum, I need it for my power brakes, will that change with a smaller carb?
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