Every-time I port a non race type of manifold I get kinda pissed at the after porting numbers. M1, LD340, RPM type manifolds, Speedmaster dual plane, old style Torquer intake, etc. they sound so much smoother after porting but the flow numbers don’t respond. Some are so limited in where you can reach to port or the thickness of material. I know the head hurt the Victor real bad at .700 lift and any dual plane will peter out. I expect more but it’s still capable of 500 horsepower with the right cam. But I want you guys to have 575 and up. I’ll post up the numbers and honestly on this style of intake I’m going to recommend just a nice gasket match for now on. You guys can save 300.00 plus shipping and are all capable of doing that job. Now the Victor340, super Victor, Indy, Etc you more than get your money worth. I forgot till talking to the customer tonight that he sent a beautiful Wilson Manifold spacer so I will be bolting the Victor back on but I may remove the head and fix the issue going on with it then retest both manifolds and the spacer.
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