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are the plugs in the right firing order. also to me it sounds like a vac hose is leaking or knocked off. is it throwing any codes on the check engine light. also you disconnected the battery, drive it for like 15 min. shut off. then restart. see if that works. ecm may have to learn and set its self.
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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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