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I just picked up another boat with a 454 Mag MPI/Procharger set-up w/Aeromotive fuel sys. What plug should I use?
 

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mo balls than $cents$
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ngk , i think it was #8's i ran in my blower motor
 

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Half a bubble off
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Love the avatar Louis :)grn

Thanks for the info. l've heard from some about the smaller gaps also for MSD types systems which is why I posed the question.

You and Richard racing this year or recovering?

John, Alot depends on what type of ignition system you are running. With Mags you run the gap at 18-20, with electronic systems (not sure because I don't run them) I would think you would run the gap around 38-40. Just my .02
 

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AKA Blownjet 468
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used to run r42ts @ 35, 7-al2, crank trigger, locked @32*
16lbs. of boost, w/116 oct. fuel, never a problem.
 

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Half a bubble off
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Retired, gonna try SKYDIVING. :D:D
Lets see, getting thrown under that dash at one circle race and then getting thrown out of the boat at another circle race WASN'T exciting enough for you?

You need help my friend (though we had already figg'rd that one out on our own haven't we).....
 

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