While you have it running, spray some carb/choke cleaner all around the carburetor base and the seam where the top joins the body. If the engine revs change you have found your vacuum leak and likely point of warpage.
When the carb is off the car and taken apart, lay the mating surfaces of the parts on a piece of window glass and look for gaps. A metal straight edge works, too, of course but the glass method is a little easier
Last edited by Otto Skorzeny; 08/31/2022 5:00 PM.
