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1990 GMC
Air and Fuel Delivery Electronic Fuel Injection
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Holley 502-9 670 CFM Two Barrel TBI, 1990-95 5.7L GM Truck

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Throttle Body Style: Throttle Body Injection (TBI)

Throttle Body Barrels: 2-Barrel

Throttle Body Bore Size: 50.80mm

CFM: 670 CFM

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Holley 502-7 670 CFM Two Barrel TBI, 1988-91 4.3L GM Truck

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Throttle Body Style: Throttle Body Injection (TBI)

Throttle Body Barrels: 2-Barrel

Throttle Body Bore Size: 50.80mm

CFM: 670 CFM

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