Holley 1920 Carburetor Specifications Idle screw – This screw/spring may work on most 1920’s. 80-87 + 66-52 Fuel pump pressure 4.5 lbs Updated on 04/02/2021 Was this article helpful? Yes No Related Articles Holley 1920 & 1904 Pump Relief Hole Holley 1920 Metering Circuit Holley 1920 Carburetor Identification How to Buy Holley 1920 Carburetor Kits Holley 1920 Power Enrichment Holley 1920 1 Barrel Idle Need Support?Can't find the answer you're looking for?Contact Support
