Quote:
Originally Posted by jan bogert
if air direction is to come out the oil filler breather tube, and go in the carb, why does the '35, '36 '37 have a scoop on the oil filler breather? for air to go in and out the bottom. JMO
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The natural and original design by Ford was just as you have described and the way yours and mine is set up, to go IN the breather cap and out the bottom. This discussion evolved into some attempts to run the air backwards by sucking the air out of the breather cap with a PCV valve to the intake manifold and IN from the bottom of the engine hoping that would be an improvement on Ford's "natural and free flow" approach.
I would think that 99% of all flatheads work just fine with the original design but some owners like to "tinker" with other ideas. Nothing wrong with that, just may not really make any difference.