what spark plug for high boost?

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08-10-2009, 10:46 PM

baker67nova

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what spark plug for high boost?

my engine is almost done and i need to know which spark plugs to use i have a 408 with a blow thru carb set up with msd 6010 box plan on running 20-25 pounds of boost.what are you guys running?

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08-11-2009, 05:40 AM

Fireball

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Quote:

Originally Posted by baker67nova

my engine is almost done and i need to know which spark plugs to use i have a 408 with a blow thru carb set up with msd 6010 box plan on running 20-25 pounds of boost.what are you guys running?

I'm running Autolite AR3933 plugs, but they need aftermarket heads since they are gasket seat.