Designed for use with Holley Standard Flange Dual Feed or 4500 Dominator® Series carburetors. Fully adjustable from 4-1/2 to 9 psi. Recommended for use with Edelbrock racing fuel pumps. Kits include fittings, mounting plate, fuel line and regulator. Fuel line from fuel pump to regulator is not included.

Use 350-8122 or 350-8127 for pumps with 1/2"NPT outlet.