I sold my old first gen car to a friend. It has a streetported 13b (4 port) with a camden supercharger (roots type blower) I believe it is 121 cu in. He wants to know what size carb to run on it..I say at least a 650 holley...The car has a 550 holley and I know that is to small..Your input would be greatly appreciated..Thanks, Chris

 

I think a 650 will do, I have seen a few 13B PP's here from a few years back that ran 850 double pumpers with a GM 6/71 blower set up and were making 385BHP.

I would say a 650 should be right.

 

Fast reply...Thanks Peter