03-22-2004, 03:40 PM
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Senior Club Cobra Member
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Join Date: Jan 2001
Location: Bloomfield Hills, (Detroit area),
Mi
Cobra Make, Engine: Superformance 156, ex Paxton 351, now a 392 Ford Racing Stroker
Posts: 1,666
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Not Ranked
tony, on mine and others i have seen they drill a hole into the collectors, on the inside near the bottom angled at about the 5:00 position looking rear to front. it is out of sight when looking at the car , unless looking from the underside. it has a threaded plug that goes in and closes it off or take off the plug and that is where their air/fuel ratio attachment goes that their electronics plug into. my description/terminology is probably not the best to understand. some shops use a 'wand' they put up the exhaust tip going forward towards the front collectors. i am told that is not as effective. if they are not measuring air / fuel ratios, then all you are getting is hp/ trq numbers without any knowledge of how rich/lean your set up might be,might as well stay home and pick numbers out of the air if that is all ya get. bill
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