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Old 08-21-2005, 05:43 PM
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Need some help on plugs

How is everyone,


I just went all out I bought the msd digital 6 and distributor and all. I have a problem now- I want to use the msd 8.5 super conductor wires but the boots for the spark plugs are to big. With the angled plugs and the hooker comp headers it seems that a regular length sparkplug is just to much especially on the #6 i think cylinder. I was wondering if anyone could recommend a good shorty plug. I am hoping that that will take care of my problems. Maybe I should go with a heat resistant with a smaller boot but I would not know what company to go with. I don't know what heat range, I am just running the set that AFR recommends- Spark Plug Starting Range AC FR3LSs.

Anybody experience this before???

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Old 08-22-2005, 02:55 PM
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anyone ?????????????
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Old 08-22-2005, 03:11 PM
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Oldsmo, I know what you mean that those boots are pretty good size. We buy that wire by the roll and use it on all new engines. One thing before you get too carried away though. On my engine header and plug clearane is extremely tight. It is a struggle to even get the boot over the tip of the plug let alone pushed all the way on until you feel the "click" of the connector. So one thing, are you sure that the boots fully seated into the connector? There should be very little of the plug porcelain showing once it's seated home. On three cylinders I have maybe .080 clearance between the plug boot and the header. Over the past year I have not had any issues with the boot burning. The boots seem to take a lot more heat than say a Taylor 409.

I know the AFR's can be tight with some header combos but I'm wondering if it's really an issue or not, I have always used Hedman or Stahl headers on an application like this so I don't know really how much room you have. Neither of these style headers though have posed a need for shorty plugs.

As for a shorty plug Accel makes some although not ever using them I don't know how they cross versus what your currently using. They would be an option for you though.
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Old 08-22-2005, 03:17 PM
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well i didn't put them on yet but it looked like it was going to be too close for comefort. I think I will see how it works. worst comes to worst i will just take them back and get another kind of wire.
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