Drilling TB hole for new H/C setup?
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Drilling TB hole for new H/C setup?
I was using the TR224 112LSA cam and never drilled out the hole in the TB, just raised the Idle set screw. Well my new SII heads along with my 228/236 .571 .602 111LSA cam, am i going to need to drill the hole now? If so What drill bit size do I start with? Thank You.