The Holley 94 and 2100 two barrel carbs came as the standard equipment 2 barrel carbs on the 1938 thru 1956 Fords. When converting the distributors on the Y-Block Ford engines from the original Load-O-Matic (LOM) design to the later model Ford (1957 and up) distributors, the Holley 94’s original distributor vacuum port for the distributor will supply an excess of negative pressure or vacumm signal to the late model distributors. Continue reading “Modifying the Holley 94 two barrel for late model distributors”