Trick Flow 240 Intake Pushrod Hole Clearance ???

Outsder said

Got a set of 240s on the shelf, checked just for you. Oval milled, with a 1/2" end mill, cut .680" long.

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Thanks! How much minimum clearance you need for pushrods? If I were to use 7/16 PRs that would mean only 1/32 on each side (1/16 total)..