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TBI 454 running rich

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03-06-2015, 11:06 PM	#7
Myers horsepower Registered User Join Date: Dec 2012 Location: Springfield, OR Posts: 30	Re: TBI 454 running rich One thing that you may want to look at, has the truck had different exhaust put on it? More free flowing? if so you may want to put a 3 wire O2 sensor on it. __________________ 1990 chevy Crewcab K30 454tbi/th400/np205twin stick/14bltFF,eaton posi/D60. 1972 CST K5 350/th350/12blt,eaton posi/D44 1970 K10 SWB 1970 K20 350/th350

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