there is no a carb you just pull out the box an bolt right up an run with no problem. They did that to my car before I purchased it. it was way off with a lot of adjustment. It was an eddybrock, that need to be rejeted. Did the work to rebuild it an set it up for the work that was done to the motor. I was thinking of trying to go back with a qjet but a lot of items would need to be changed. The car runs good like it is, so I just enjoy it like that.