Edelbrock made a 6X2 intake manifold and a set of water-cooled marine exhaust manifolds (M4) and Weiand made a drag start 8X2 manifold as well.
Specialty Equipment Market Association (SEMA) of the automobile aftermarket was formed in 1963 by Roy Richter, Ed Iskenderian, Willie Garner, Bob Hedman,Robert E. Wyman, John Bartlett, Phil Weiand, Jr., Al Segal, Dean Moon, and Vic Edelbrock, Jr. and now consists of 6,383 companies worldwide, bringing together aftermarket manufacturers, original equipment manufacturers, media, car dealers, specialty equipment distributors, installers, retailers and restoration specialists.