454 Mag
#1
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Join Date: Nov 2009
Location: Cincinnasti, OH
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454 Mag
I have a stock 454 Mag with Thunderbolt ignition. I can only get 44-4500 rpms wide open. Is there any simple inexpensive things i can do to get more out of it?
#6
Charter Member # 55
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454mag is 4600-5000 rpms WOT range. You should be able to spin a 23 Mirage easily up to 4800-5000rpms with your boat and a 454mag. See if more trim helps. Use the trailer button to trim it a little higher if needed.