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Holley EFI - 670 CFM Two Barrel TBI - 1988-91 4.3L GM Truck
Holley EFI - 670 CFM Two Barrel TBI - 1987-89 5.0L GM Truck
Holley EFI - 670 CFM Two Barrel TBI - 1987-89 5.7L GM Truck
Holley EFI - 670 CFM Two Barrel TBI - 1986-89 4.3L GM Truck
Holley EFI - 670 CFM Two Barrel TBI - 1990-95 5.7L GM Truck