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Thread: aluminum head swap on merc 500hp
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02-10-2013, 03:44 PM #11Senior Member
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02-10-2013, 03:50 PM #12Senior Member
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02-11-2013, 03:26 PM #13Senior Member
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talk about bang for your buck,,,I netted 10 mph and 2 1/2 pitch sizes...
i changed the heads and carb... left the stock cam...
if you watched the videos, you seen the swap problems and gains...
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