Hy guys, I just received a call from a friend who is trying to dyno a freshly rebuilt 261, he sent his carburetor down to California to be rebuilt and has used the rebuilder before with good results. The carburetor is an automatic choke type Rochester. The engine is stock except for an H.E.I. distributor. He said the engine is leaning out below 1200 rpm and wont idle below that rpm. He has checked for vacuum leaks and corrected those he found. His call was to check and see if I had a carburetor for a 261 and I told him I would have to look at all my carburetors to see if I could locate one that was definitely for a 261. He has verified the timing and the engine runs well except when trying to idle it down, it sure sounds carburetor related to me, anybody have any suggestions, thanks in advance.
