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Old 03-08-2006, 09:35 AM
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Plugs fouling out

I got a 327 chevy motor with Dart 165cc heads on it that keeps fouling the plugs out. The spec sheet calls for either champion rv12yc or AC r44ts plugs.The engine also has a mallory unilite distribuator new mallory wires.I have a edelbrock 600 carb on a single top tunnel ram manifold that when you screw the mixture screws in all the way in the engine keeps on running. Ive sprayed carb cleaner arond the carb and around the intake manifold for a vaccum leak but the engine does not speed up . Whats my problems?Would using a MSD 6 ignition box solve some of the problems?Thanks Alot, ED

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Old 03-08-2006, 10:02 AM
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Screwing the idle mixers all the in leans the mixture. If you have no response from these adjustments' you have a overly rich condition. Which is indicated by your plugs condition. A vacuum leak causes a lean condition. I would look at the carb(s) for furtherer analysis.

Broken Power Valve, Float to high, pressure to high, needle and seats...
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Old 03-08-2006, 10:37 AM
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never fails... edelbrock....

anywho... could be your idle is set too high, that would cancel out the mixture screws. how far open are the throttle plates at idle?. or like johnson said, bad needle and seats, if somebody screwed the mix screws in too hard then that would flatten the tip. but if you can screw them in all the way and it makes no difference i'd lean twards the throttle plates open too far or the tip of the mixture screws are flattened....
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Old 03-08-2006, 06:28 PM
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If Your Engine Carburetor,Ignition Is At Excellent-Peak


You Better Get Used To It--It Is 81,82,83 Cheap Gasoline Corn Fed With Household Cleaners In It To Kick Up Octane-Its Destroying All Your Engines...All @ $3.00 Gallon Gas...

Provided Your Engine Is Tuned Peak Performance,New Parts, etc (Most Are Not) Then-

If You Have Electronic Ignition Set Up --Switch To Champion Platinum Spark Plugs-Use Factory Gap If Factory Stock Engine--Experiment Gap If Modified Engine!

Regular Spark Plugs Foul Instantly--Platinums Will As Rule Burn The Crap Fouled Gas Off ! If You Drive Your Car Once Twice Week--I Do, For Sure Cold Starts-Plugs Foul...

Big Plus: Doesn't Hurt Clean Spark Plugs Every Couple 1000 Miles & Reverse Reinstall Banks-----Use Good Octane Booster In Gas Tank Every Other Fill Up...

Vincent Auto
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