Convert to STI shim under bucket - that's what I did to the bugeye Wrx heads I used in my build with Brian crower 272's (10.2mm lift).

A word of warning - do not use titanium collets as they are prone to pulling through the valve spring retainers.

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[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]