The advantage of a dry sump is the engine has a constant supply of oil that has been allowed to stay in one spot long enough to get most of the air out of it, I ran tests on a tilt table,on various engines, to find the best place to put vents, on an engine with an oil pan, at some RPM, the gear drive for the cam, would just rip the oil right out of the pan, and for a while, it was on top of the heads, it was unbelievable how quickly that would happen, and for an instant you have no oil pressure, after being a part of that testing, I will always run a dry sump. Jmho. Bob
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"Being old, isn't half as much fun, as getting there"! Ole Robert I! 
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