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Originally Posted by Half-Inch Stud
I owned a set of 7M5s and had the screw-in stud KEEN-SERTs installed. Nicely done & affordable.
Drill &Tap the EXH Flange end-holes (4 places) gets the 7M5s to Ram Air III casting parameters (aside from compression). Mine were the 2.11/1.77 combo. Good blower head.
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HIS...could you provide more info on KEEN-SERTS ??