Sometime, put a bucket under your gascolator, open the drain and time for a minute.  See how many gallons you get. (GPM gravity feed) 

I'll bet you're sucking fuel out of your tanks anytime you have more throttle in than say- low cruise.

Mark,

 

Nope, I am not sucking up..................

 

Actually, the gascolator drain is too small (my drain pipe is a 1/8" line.  If I remove the 3/8" (#6?) line from the far side of the gascolator and watch the flow - it's a lot greater than that out of the stinking drain.  As a matter of fact, it is 36 times the cross section of the drain pipe.   After all, my max fuel flow is about 15.2 gallons per HOUR.  Or merely a quart a minute.

 

No flame outs for me!

 

Wait, how much you wanna bet?

 

Scott