Carburetor Floods / Regulator Won't Go Down

I just installed an A2000 (or A3000) fuel pump and can’t get the regulator on the pump to go below 11-12 PSI fuel pressure.  The carburetor keeps flooding, what’s wrong?

The regulator on the A-2000 fuel pump, part number 11202, is designed to control line pressure (inlet pressure) to a static, non-bypass, Aeromotive regulator, including part numbers 13108, 13203, 13208 and 13205.  The pump bypass is not capable of flowing sufficient volume to regulate pressure below 12 psi and cannot be used alone to regulate pressure directly to a carburetor.  The regulator feature on these pumps is designed to present extremely consistent, adjustable fuel pressure to the inlet of a static regulator under the hood.