Speedmaster MidRise Air Intake Manifold

Having just reading this thread had to open up the box my manifold came in, which I purchased during the black Sunday sales. Looks good seems to fit well during a dry test fit, don’t relish the plugs used to cover up the bolt holes. The casting shift seems to be a minimal no worst then the engine it sits on.

But I am in a split here, to use this manifold or the Edelbrock Streetmaster or even my cast iron manifold I took off my 70 340. Stock heads, with some porting done, with a Mellings SPD22 cam and lifter kit. A stock 1972 318 block 30 over bore, like to stay in the 1200 to 5000 range for my power needs. Out of the three manifolds which one would be best for my build?

View attachment 1715645418

View attachment 1715645419
Yeah that's a dilemma. Is it the 318 streetmaster? I know that has smaller runners but so do your heads if they're the factory 318 heads. It's likely coming out of that Speedmaster intake the air and fuel theoretically hit the wall...
I guess it kind of depends on what that cam is and the gears you're running and also what you're hopes are and what rig putting it in...