RBS stocks a large line of carb adpts and here is another shining example. This carb adpt. starts as a solid chunk of billet alum. and is machined to fit all 6-71 thru 14-71 blowers allowing you to mount two 4150 carbs a top your supercharger side saddle or two Edelbrock or Carter carbs inline.
The adpt. is show polished and includes all gaskets and mounting hardware to bolt to the supercharger.
Fits all standard Holley 4150 type carburetor flanges. Center to center of bolt mounting bolt holes are 13.250" and center to center on the carburetors are 8.625".