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Re: Hooker headers
I ran lts with ported intake on the stock tune for a while. It ran good but it ran better after the custom tune, big surprise. The first tank of fuel after the headers the mileage was horrendous, then the computer learned and it got better.
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2004 Mach 1 #6956 5spd w/IUP
Eaton swap, longtubes, built 3.73 SRA
452hp/409tq dynojet🏁
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