yes I bought 2 rochester B's from some unscrupulous person that had no way to hold down the air filter, (they didn't mention that part when I bought them) then when I asked if they had the parts I was missing they offered to sell me two more carburetors. Then I find out that these carburetors are a lot like the vega and the citation, mostly useless. It has been an expensive learning experience. I know this doesn't help your situation, but at least you know you aren't alone...I've decided to go with twin webers from langdons, as I can't seem to find anyone with 2 WF's or 2 W1's at the same time that don't want $250 apiece.