Fine Tuning a 360 Magnum with a Brawler "Double Pumper"

jmanhoff said

Yeah I might order a 10.5 and a 12.5 and see what it’s happier with. Does that slight cut sound like it’s too lean or too rich though?

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Whats the vacuum reading , in gear n foot on brakes? Choose a pv half of that or one step above half.
Make sure there is no gap between the pump lever and diaphragm and MAYBE try a diff color pump cam. Wouldn't think this would need a big shooter, there's a ton of vac and no high stall convertor, or is there?