05-21-2024, 09:34 AM
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Ultimate Warrior
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Join Date: Feb 2014
Location: Indianapolis,Indiana
Posts: 1,649
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Here is a thread on a 428 with a tri-power. A 428 is basically a 421 that is .030 over. Anyway, might be worth a look: https://forums.maxperformanceinc.com...&highlight=428
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