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<x-charset iso-8859-1>Fouling , how black/wet or fluffy black dry? Black wet is oil getting through. Black fluffy is gas. If it smells like gas, your engine runs good, carbs are lean and you have good vacume , you may have a clogged breather pipe in the carb. This is a tiney pipe with a hole as small as a needle this is used to meter fuel so air suction catches fuel mixed with air for the mist, when these get clogged, you will only have fuel getting sucked in through wholesale and then it will dump out of the ventri. Has your setup been running good before you noticed this, did the plugs have deposits? Have you used your carbs before and had no deposits ? It can also be that the jets are mismatched for the carbs, if the plugs were never clean with these carbs. Bad heads will cause lake of compression and fuel will not burn well, leaning the carbs will actually make the car run worse and miss noticeably. Black soot on the plugs will take a good deal of driving. Check your compression , valve adjustment and then take a look at your carbs , maybe you can use a needle and unclog the holes. I have had these problems with carbs, some carbs are made differently but should be the same. You do have carbs ? ============================================================================ I keep fouling plugs in my engine. I rebuilt the carbs and replaced all the ignition parts. I adjusted the carbs as lean as I could and the plugs still turned black. I haven't tested compression yet, but suspect that the heads might be bad, because they were not rebuilt before being installed. Could a bad head cause the plugs to foul. Engine is stock dual carb 1600. Jack ------------------------------------------------------------------- Unsubscribe? mailto:type3-request@vwtype3.org, Subject: unsubscribe </x-charset>