I have been chasing my tail on a problem with my carter. I have a 66 wildcat with dual quads. The problem is in the primary (back) carburator. The car does not run right with this carb. It does not idle very well and no fuel is being pulled from the primary boosters. I adjusted the float level 100 times. The carb was disassembled, soaked, cleaned and reassembled with a new carb kit. I took a piece of wire and fed it through the passages going to the boosters and they are all clear. I have swapped in known good metering rods and springs. Prob still there! I removed the carb and replaced it with my original 4 bbl carter and the car runs perfect. Called around to many different card shops and they said "oh, yeah...you got a bad carburator". I even called edelbrocks help line and they never heard of such a problem. Anyone have any ideas?