Holley 1901

Does not accelerate. Okay, here is your standard troubleshooting checklist for a 1901 (this also goes for 885, 2140 and...

On Mercury vehicles equipped with automatic transmissions, a dashpot is incorporated with the carburetor to prevent loading of the engine...

The spark advance mechanism of the Holley pressure type distributor is controlled by a vacu­um operated diaphragm operating against the...

Fuel enters the Holley 1901 through the fuel inlet. When the fuel lowers and the float drops, the fuel valve...

The model 1901-FFG truck carburetors in­corporate the Holley Centri-Vac vacuum operated engine speed governor. The governor consists of two units,...

Dashpots are used on the 1901 with automatic transmission.

At idle and low speed the manifold vacuum is at it’s highest which brings fuel in from the idle circuit....

With the engine running, air is drawn in by the downward stroke of the pistons through the carburetor venturi. This...

Sometimes referred to as a Holley Teapot As the throttle opening is increased upon acceleration, the air flow through the...

All manifold vacuum to the distributor passes through the spark control valve. Under normal road load conditions, the spark valve...