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09-18-2011, 08:04 PM
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dugeman
Join Date: Mar 2009
Location: Clayton
Posts: 64
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I have a 4-7 swap on my motor ,it's done thru the cam , then firing order. Doesn't really make any more hp, but smoothes the motor and help cooling . It's a little more involved ,and some motor s will make a few more ponies.
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