Found Out Why Its Not A Good Idea To Feed A Center Pump With The Return From The Outer Two.the Center Pump Will Hold The Highest Pressure Longer After The Rpm's Have Come Down.discovered This While Dialing In My Return Now I'm In The Process Of Making A Brass Fuel Log To Feed Three Carbs From Two Inlets.the Log Is About 9" Long And Fairly Thin.much Cleaner And Compact Setup.i Will Eventually Beat This Thing .