AFR 185's w/E-303: Piston to valve clearance problems?

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Originally posted by Technick
As long as the duration measured at .050 lift is LESS than 230 degrees then lift DOES NOT MATTER!!!!!!!!!!!!!!!!!!!! It is WHEN the valves are open, not how much they open that is the issue! You do not have to worry about flycutting the pistons as long as you follow that simple rule. The E-303 cam has a duration of 220 degrees at .050 lift. So that cam is not a problem even with 1.7 rockers. I don't care what heads are on the engine that cam is not a problem.

I dont even think you can slap 185's on a stock block with the stock cam. When I was looking at heads I was told by Summit that I would have to flycut my pistons in order to use them.