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Thread: Champion N12Y or ????

  1. #1
    Thank you from BT Master (OIIIO)
    Join Date
    Oct 2006

    Champion N12Y or ????

    I'm in a debate over spark plugs... In one motor I have an HEI and the other (spare 360) I have an MSD Ignition system... In the link below there are various plugs, are any of you guys running any of these plugs with either an HEI or MSD Ignition system? If so, what has your experience been like with them...

  2. #2
    Thank you from BT Grease Monkey
    Join Date
    Feb 2007
    I run the NGK GR4 with Motorcraft dizzy and MSD 6AL box. I can't complain. 5 years and still running these plugs. Off-road only. Maybe 100 hrs a year. Maybe more.

    I tend to stay away from Champions due to problems I've had in ag applications.
    Its a Jeep Thing --- No one understands!

    "America will never be destroyed from the outside. If we falter and lose our freedoms, it will be because we destroyed ourselves."
    -Abraham Lincoln

  3. #3
    Thank you from BT ULTRA TECH MASTER!!!
    Join Date
    Feb 2005
    East Bethel Mn
    Msd ignition, mallory unilite dizzy, & moroso ultra40 wires on my 390. I also use ngk gr4 plugs. Mostly hard street use with the occasional trip to the strip. Also no complaints.
    he who dies with the most toys wins!!!
    69' amx 390 4 speed best et 11.85 @ 116mph

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