Hi all...I know I saw this recently, but which cars had the vacuum pump, or booster, that I can remove and install on my 71....Just in case, I might not need it, but the cam I'm installing may post a problem with vacuum...I think it was from a Citation, does that sound right?? And I think there were a couple others mentioned too...Thanks much...John

Your right. Early eighties small cars (Cavaliers/Citations). Look for a "T" fitting in the Vacuum line coming off the booster. Follow it away from the engine, to the pump located under the fender, fender well, or inside the front bumper.