The breakthrough of the 11R 227—a tip of the hat to the cylinder head’s 11-degree valve angle and fully CNC’d 227cc intake ports—is less revolutionary than evolutionary. It takes lessons learned from ...
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 ...
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