Holley four-barrel carburetor with vacuum secondary diaphragm on…

A Holley four-barrel carburetor sitting on brown cardboard in sunlight, photographed from above at a three-quarter angle. The gold-cadmium-plated body shows the cast HOLLEY logo on the metering block side, a red plastic choke-rod cap, brass fuel inlet fittings, vacuum secondary diaphragm housing at right, and the external fuel transfer tube looping across the front.

AI caption October 2007 · Photo 112 of 1457