Speedmaster Small block porting tips and results Part 1

ou812 said

Watch how much the air speeds up when working the chamber. Also, if you leave slight ridge and don't blend the chamber into the top cut, you can slow down the reverse flow. Then bring the flow in good after .250 lift. Helps power production down low. I get better flow with less work using the SM castings. They also have more metal in them in certain spots than the eddy heads allowing for better shaping of things. The throat is large enough to go to a 2.055 intake valve also, only needs a slight increase to get that 90%.

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I hear there is less water in the floor but honestly I’ve gotten to where I’ve tried to avoid the floor on Edelbrock heads anyway. The short side is so pathetically small if you get to aggressive it makes shaping the short side harder. I promised myself I wouldn’t lean on these to hard as I have 5-6 set of Edelbrock heads here but I do have a set of 2.08 valves that are used up and could be cut down for these heads. For now I stick to simple mods to possibly help a few of our members. It sounds like you too are unhappy with the Edelbrock castings of today.