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Original Message
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| methinks we've covered this before.... |
| By John - 06/24/2005 4:44:16 PM; IP 142.177.71.82 |
| With your set-up, a lot of fuel still gets pumped through the engine when you let off the gas. The unburnt gas ignites in the exhaust causing the "backfire" (a true "backfire" comes out the carb,,,,,much worse.....LOL). A strong ignition system is required to fire the fuel in the chamber during this deceleration. A pertonix unit fixed my problem like this. In your case, it amy be the ignition timing is off as you've changed everyting else. Perhaps the distributor centrifigal advance is sticking. The only major difference that probably exists between your engine and mine is that I don't use a vacumn advance. Maybe that is contributing to the trouble. Maybe you can find another type of distributor to try before plunking down a lot of $ for a big buck unit. |
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This thread, so far...
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