Not on a Mopar but on a friends old Mustang 289 hi-po. I’ve had this carb apart 3 times now and we can’t get it to run. A mechanic tried his luck first on the carb but he left it in pretty bad shape and then I got to work on it. It won’t idle. It runs on the accelerator pump and on the main circuit given enough throttle. It looks like a steam engine running under throttle it puts out so much fuel smoke. Black, carbon-fouled gas is seeping out the left header flange. Plugs are wet with gas. Feels like it’s missing. I’ve cleaned, rodded out every passage, blown everything out, installed a complete new kit in it, adjusted everything, checked PV, checked for warpage, checked floats - nothing has worked so far. He has a pretty aggressive cam in it so I cracked the secondaries open a bit more so the primaries should sit about right on the transition slot. No help. Idle screws don’t seem to have much affect as it won’t idle at all. It’s clean as can be inside. For a couple days after the first time I cleaned it, it had a bunch of crap in it - some dried fuel deposits and some sort of red fuel residue that got in his fuel (?) - it actually ran right and idled, was smooth, and responsive. And then the next time he started it it was back to its possessed mayhem. New plugs, new points, new condenser, new cap/rotor, new fuel filter, new fuel pump, wires seem to be good, adjusted valves - just to eliminate those possibilities. Tried another Holley on it that he borrowed last weekend and it ran and idled perfect. He browsed the internet and found a lot of chatter that these carbs have a bad history and once they go bad a rebuild seldom helps. The Holley tech line says it must be pulling excess gas from somewhere - brilliant!
Anyone have any experience trying to get one of these Street Avengers running right? A Catholic priest is about all we can think of.
Anyone have any experience trying to get one of these Street Avengers running right? A Catholic priest is about all we can think of.