Drill a hole in the adapter then drive in a male torx socket with a hammer.
Or skip the drill if you have a torx the right size.
Should be able to unscrew it that way.
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NA on E85 - 12.402 @ 112 mph
100 shot E85 - 11.589 @ 117 mph
JWT C2 cams rev Base Circle & Titan Valves
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