Thread: What to do for 5.3L harness and ecu
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Old 09-30-2012, 09:16 PM   #10
69trk
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Join Date: Oct 2006
Location: bridgecreek ok.
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Re: What to do for 5.3L harness and ecu
come up to oklahoma city and i'll just give you my complete harness and ecu....
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http://67-72chevytrucks.com/vboard/s...d.php?t=494388

431 big block times, changed to a 6.0 ls with turbo
1.58- 60'
7.18- 1/8th mile@95.18
11.37- 1/4 @115.81
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