WE b OLD,
TWO CARBS!!!!!!!!!Geezzz, a minor detail. Did you put a timing light on it yet? See if #1 stays near it's timing mark on the vibration dampner (damper) as you come down in RPM's. I am guessing the Pertronix unit has NO vacuum advance, but still has it's centrifugal advance. This will show you if the timing goes nuts as you drop engine speed and start to die. I think the engine might run on only one of the dual carbs, but would be WAY lean...your plugs say RICH. Is the tailpipe sooty..do you smell heavy unburned gas fumes when you run it? The throttle linkage on some of the dual setups is
sort of funky, is one carb at 1/2 throttle while
the other is on the idle screw. I wish I was nearer to IN so I could help. Sometimes you just want to walk out of the garage and call Mr. Goodwrench! He would probably be 18 years old and have never seen a carburetor. When it backfires, does it do it through the carburetor, complete with flames, or out the tailpipe?
Stuart.
