Looks like most of the race VK's run ITB's. Once you dial in the linkage you can have a solid runner My guy is talking me though it....... interesting that the 56 builds are favoring the 45 heads and manifold- head are bullet proof and the manifold has shorter runners so it observes a better performance curve. Read a thread that described a simple 56 build JWT cams, ITB's, headers - 400 [FONT=Verdana, Helvetica, Arial]WHP 400LBs TRQ. That would be a fun ride.
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