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87 350 TBI High Idle | GM Square Body - 1973 - 1987 GM Truck Forum
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87 350 TBI High Idle | GM Square Body - 1973 - 1987 GM Truck Forum
Chevy 350 TBI: Spark Plug Gap, Firing Order & Rotation | JustAnswer
454 Tbi Wiring Diagram - Wiring Diagram