Holley EFI- 502-4 86-89 GM P/U 4.3L 670 CFM TBI
Holley EFI- 502-5 STAND ALONE TBI
Holley EFI- 502-6 87-89 GM P/U 5.7L 670 CFM TBI
Holley EFI- 502-7 88-91 S AND T TRK 4.3L 670 CFM
Holley EFI- 502-9 90-95 GM P/U 5.7L 670 CFM TBI