6packCuda,
I'll empty my float bowls on my 395+ cid sb on the top end with a Carter mechanical. Between the hand bent 3/8" aluminum line and the hard acceleration, the pump just can't keep up. Are you running hard line or braided. Many bends in hard lines will cause volume loss at the carb. Smoother bending braided lines may help. I wish someone made the 150-160 gallon mechanical for Mopars like they do for Chebby & Fird. If I go electric will probably use an Aeromotive pump.
my $.02,
drag-n