Thread: '98 225 promax

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  1. 03-04-2019, 03:25 PM #1
    Fatshaft Merc
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    '98 225 promax

    What should the idle timing and WOT timing be set at?
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    Bullet 20XD w/ 225 ProMax

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  2. JOE54
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    #2 03-05-2019, 06:54 AM
    6-8/25 high octane only
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  3. Fatshaft Merc
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    #3 03-06-2019, 09:45 PM
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    Bullet 20XD w/ 225 ProMax

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  4. silverbullet02
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    #4 03-07-2019, 02:44 PM
    I run 4 after and 23 before in mine and it runs well. I also retained the idle stabilizer.
    1995 Allison XB-2003 225 Super Mag. It's slow and I'm ok with that.
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