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2,578 Posts
well the 4000 spring is turnin that turbo more hence the more air
Posts by grizzly_man07
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It's time to cast your vote for March's Cummins of the Month!
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2,578 Posts
ditto. especially with you wantin to pull. you need to atleast get 60lb springs
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2,578 Posts
well no afc is just full fuel. when you floor it you are pushin those rpms high which is making more flow from your turbo. this actually sounds like it was a good modification
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2,578 Posts
he should of had one before he cranked that pump
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