60thou over, 1mm dish pistons, h75 unported,, 4-2-1 2inch, not sure on can specs but decent overlap and no power under 2000 so not worth trying. Over 4 is pretty good. Carby right now is 38/38 edges on modified manifold. Been playing with the jetting since my last dyno run so it'll be right up near 100hp atw. Scalloped crank and lightened a12 flywheel