Similar in design to our single scoops but built to accommodate dual 5-1/8" inlet carburetors (standard Holleys). The scoop is 6" tall X 11"wide X 24" long. It requires the use of two flame arrestors (8" X 3" or smaller) to hold it in place and meet U.S. Coast Guard requirements. You must specify the measurement for the distance between the centerlines of the two carburetors when ordering