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ANYONE KNOW IF THE TBI....
hey guys, does anyone know if the tbi from the early 90's have adjustable fuel regulators. i believe my formula is running a little lean. she backfires through the tbi. any ideas. i bought it from so dude in central jersey. the cat is cut off and open. i dont think its back pressure causeing the problem. thanks in advance for any help...
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1987 PONTIAC FIREBIRD SHOW WINNER current
1888 Trans Am GTA current
1989 PONTIAC FORMULA WS6 M5 355 sbc 501hp (sold)
1995 PONTIAC FIREBIRD M5 V6 ( sold )
1989 Trans Am GTA 5.7L 67000mi current
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