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post #1 of Old 07-27-2012 Thread Starter
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Question Atomic 4 backfiring thru carb, no power

My A4 has a new electronic distributor, new plug wires,new carb, plugs are wired 1243 to distributor correctly, in neutral it still backs thru carb some, when increasing throttle. In gear it back fires thru carb badly. Distributor installed correctly,checked firing order(plug wires) again, engine has 90-100 lbs (dry test) wiring to coil good,coil has 3.8-4 ohms internal resistance. I added some mystery oil to the fuel and ran the engine for awhile hoping to free up a possibly sticking intake valve . Any ideas what to check next? thanks
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