lifter galley crossover tube with air gap intake?

OldmanRick said

X2........you might check a standard non airgap RPM. Not positive but i don't think the're as tight in the valley?

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On my test motor i built the crossover with a straight fitting and then made the 90 with the metal pipe......it clears a LD 340 manifold.

I plan to run a air gap some day so this thread has my attention!!!:-k