It is safe to say the original, as-cast Twisted Wedge street head from Trick Flow Specialties (TFS)-now called Twisted Wedge Track Heat 170 Cylinder Head Fast As-Cast-all but revolutionized the Ford 5 ...
If size is the only thing that matters, then big-block Fords would dominate the street/strip world. They don't. At least not yet, but big changes are on the horizon thanks to Air Flow Research. Most ...
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