A-Team Performance 10495798 OEM Distributor HEI651R Compatible With GMC Chevy 4.3L V6 TBI EFI 1985-199 6CYL Blazer S10 S15 Jimmy Sonoma C K Truck Pontiac Red Cap. OEM replacement EFI distributors are direct replacements for stock units, but with improvements throughout. With a CNC-machined aluminum housing, steel internal construction, and a high-quality magnetic pick-up trigger, this distributor will provide OE fit and greatly improved performance and reliability.