Distributor Vacuum Advance Buick Distributor Chevrolet GMC Oldsmobile Pontiac Vacuum AdvanceVACUUM ADVANCE CHEVROLET 1975 1976 1977 CHEVROLET CAMARO CHEVROLET BLAZER CORVETTE CHEVELLE EL CAMINO CHEVROLET IMPALA MONTE CARLO CHEVROLET NOVA CHEVROLET TRUCK CHEVROLET VAN GMC TRUCK GMC VAN DISTRIBUTOR VACUUM ADVANCE Advance Starts @ 3.0-5.0" Hg Distributor Vacuum Advance Buick Distributor Chevrolet GMC Oldsmobile Pontiac Vacuum Advance Buick Century Distributor Vacuum Advance 1977-1978 1977 5.0L 305cid V8 1 per Vehicle 1978 5.0L 305cid V8 VIN:H 1 per Vehicle 1977 5.7L 350cid V8 1 per Vehicle 1977 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1978 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1977 5.7L 350cid V8 Vin:R 1 per Vehicle LeSabre Distributor Vacuum Advance 1978 5.0L 305cid V8 1 per Vehicle Regal Distributor Vacuum Advance 1977-1978 1977 5.0L 305cid V8 1 per Vehicle 1978 5.0L 305cid V8 VIN:H 1 per Vehicle 1977 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle Skylark Distributor Vacuum Advance 1977-1979 1977 5.0L 305cid V8 1 per Vehicle 1978 5.0L 305cid V8 1 per Vehicle 1979 5.0L 305cid V8 1 per Vehicle 1977 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1978 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle Chevrolet Bel Air Distributor Vacuum Advance 1975-1975 1975 5.7L 350cid V8 Trim:S 1 per Vehicle 1975 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle C10 Distributor Vacuum Advance 1975-1981 1975 4.1L 250cid L6 1 per Vehicle 1975 4.1L 250cid L6 1 per Vehicle 1976 4.1L 250cid L6 1 per Vehicle 1977 4.1L 250cid L6 1 per Vehicle 1978 4.1L 250cid L6 1 per Vehicle 1979 4.1L 250cid L6 1 per Vehicle 1980 4.1L 250cid L6 1 per Vehicle 1981 4.1L 250cid L6 1 per Vehicle 1976 4.1L 250cid L6 VIN:D 1 per Vehicle 1977 4.1L 250cid L6 VIN:D 1 per Vehicle 1978 4.1L 250cid L6 VIN:D 1 per Vehicle 1979 4.1L 250cid L6 VIN:D 1 per Vehicle 1980 4.1L 250cid L6 VIN:D 1 per Vehicle 1981 4.1L 250cid L6 VIN:D 1 per Vehicle 1976 5.0L 305cid V8 1 per Vehicle 1977 5.0L 305cid V8 1 per Vehicle 1978 5.0L 305cid V8 1 per Vehicle 1979 5.0L 305cid V8 1 per Vehicle 1975 5.7L 350cid V8 1 per Vehicle 1978 5.7L 350cid V8 FI DIESEL VIN:Z 1 per Vehicle 1979 5.7L 350cid V8 FI DIESEL VIN:Z 1 per Vehicle 1976 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1977 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1978 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1979 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1975 5.7L V8 1 per Vehicle 1976 5.7L V8 1 per Vehicle 1977 5.7L V8 1 per Vehicle 1978 5.7L V8 1 per Vehicle 1979 5.7L V8 1 per Vehicle 1976 6.6L 400cid V8 1 per Vehicle 1977 6.6L 400cid V8 1 per Vehicle 1978 6.6L 400cid V8 1 per Vehicle 1979 6.6L 400cid V8 1 per Vehicle C10 Suburban (15) 1975-1980 1975 4.1L 250cid L6 1 per Vehicle 1976 4.1L 250cid L6 VIN:D 1 per Vehicle 1977 4.1L 250cid L6 VIN:D 1 per Vehicle 1978 4.1L 250cid L6 VIN:D 1 per Vehicle 1979 4.1L 250cid L6 VIN:D 1 per Vehicle 1980 4.1L 250cid L6 VIN:D 1 per Vehicle 1976 5.0L 305cid V8 1 per Vehicle 1977 5.0L 305cid V8 1 per Vehicle 1978 5.0L 305cid V8 1 per Vehicle 1975 5.7L 350cid V8 1 per Vehicle 1978 5.7L 350cid V8 FI DIESEL VIN:Z 1 per Vehicle 1976 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1977 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1978 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1979 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle C20 (19) 1975-1981 1975 4.1L 250cid L6 1 per Vehicle 1976 4.1L 250cid L6 VIN:D 1 per Vehicle 1977 4.1L 250cid L6 VIN:D 1 per Vehicle 1978 4.1L 250cid L6 VIN:D 1 per Vehicle 1979 4.1L 250cid L6 VIN:D 1 per Vehicle 1980 4.1L 250cid L6 VIN:D 1 per Vehicle 1981 4.1L 250cid L6 VIN:D 1 per Vehicle 1977 5.0L 305cid V8 1 per Vehicle 1978 5.0L 305cid V8 1 per Vehicle 1979 5.0L 305cid V8 1 per Vehicle 1975 5.7L 350cid V8 1 per Vehicle 1976 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1977 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1978 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1979 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1976 6.6L 400cid V8 1 per Vehicle 1977 6.6L 400cid V8 1 per Vehicle 1978 6.6L 400cid V8 1 per Vehicle 1979 6.6L 400cid V8 1 per Vehicle C20 Suburban (6) 1975-1979 1978 5.0L 305cid V8 1 per Vehicle 1975 5.7L 350cid V8 1 per Vehicle 1976 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1977 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1979 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1977 6.6L 400cid V8 1 per Vehicle C30 (25) 1975-1980 1975 4.1L 250cid L6 1 per Vehicle 1975 4.1L 250cid L6 1 per Vehicle 1978 4.1L 250cid L6 1 per Vehicle 1979 4.1L 250cid L6 1 per Vehicle 1980 4.1L 250cid L6 1 per Vehicle 1978 4.1L 250cid L6 VIN:D 1 per Vehicle 1979 4.1L 250cid L6 VIN:D 1 per Vehicle 1980 4.1L 250cid L6 VIN:D 1 per Vehicle 1978 5.0L 305cid V8 1 per Vehicle 1979 5.0L 305cid V8 1 per Vehicle 1975 5.7L 350cid V8 1 per Vehicle 1975 5.7L 350cid V8 1 per Vehicle 1976 5.7L 350cid V8 1 per Vehicle 1977 5.7L 350cid V8 1 per Vehicle 1978 5.7L 350cid V8 1 per Vehicle 1979 5.7L 350cid V8 1 per Vehicle 1978 5.7L 350cid V8 FI DIESEL VIN:Z 1 per Vehicle 1976 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1977 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1978 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1979 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1976 6.6L 400cid V8 1 per Vehicle 1977 6.6L 400cid V8 1 per Vehicle 1978 6.6L 400cid V8 1 per Vehicle 1979 6.6L 400cid V8 1 per Vehicle Camaro Distributor Vacuum Advance 1975-1981 1975 4.1L 250cid L6 VIN:D 1 per Vehicle 1976 4.1L 250cid L6 VIN:D 1 per Vehicle 1978 4.1L 250cid L6 VIN:D 1 per Vehicle 1976 5.0L 305cid V8 1 per Vehicle 1977 5.0L 305cid V8 1 per Vehicle 1978 5.0L 305cid V8 1 per Vehicle 1979 5.0L 305cid V8 1 per Vehicle 1975 5.7L 350cid V8 Trim:S 1 per Vehicle 1975 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1976 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1977 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1978 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1980 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1981 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle Caprice (9) 1975-1979 1978 4.1L 250cid L6 VIN:D 1 per Vehicle 1977 5.0L 305cid V8 1 per Vehicle 1978 5.0L 305cid V8 1 per Vehicle 1979 5.0L 305cid V8 1 per Vehicle 1975 5.7L 350cid V8 Trim:S 1 per Vehicle 1975 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1976 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1977 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1978 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle Chevette (1) 1979-1979 1979 1.6L 98cid L4 1 per Vehicle Corvette Distributor Vacuum Advance 1976-1977 1976 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1977 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle El Camino (12) 1975-1979 1975 4.1L 250cid L6 VIN:D 1 per Vehicle 1976 4.1L 250cid L6 VIN:D 1 per Vehicle 1977 4.1L 250cid L6 VIN:D 1 per Vehicle 1976 5.0L 305cid V8 1 per Vehicle 1977 5.0L 305cid V8 1 per Vehicle 1978 5.0L 305cid V8 1 per Vehicle 1975 5.7L 350cid V8 Trim:S 1 per Vehicle 1975 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1976 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1977 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1978 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1979 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle G10 (14) 1975-1981 1975 4.1L 250cid L6 1 per Vehicle 1976 4.1L 250cid L6 VIN:D 1 per Vehicle 1977 4.1L 250cid L6 VIN:D 1 per Vehicle 1978 4.1L 250cid L6 VIN:D 1 per Vehicle 1980 4.1L 250cid L6 VIN:D 1 per Vehicle 1981 4.1L 250cid L6 VIN:D 1 per Vehicle 1977 5.0L 305cid V8 1 per Vehicle 1978 5.0L 305cid V8 1 per Vehicle 1979 5.0L 305cid V8 1 per Vehicle 1975 5.7L 350cid V8 1 per Vehicle 1976 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1977 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1978 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1979 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle G20 (20) 1975-1981 1975 4.1L 250cid L6 1 per Vehicle 1976 4.1L 250cid L6 VIN:D 1 per Vehicle 1977 4.1L 250cid L6 VIN:D 1 per Vehicle 1978 4.1L 250cid L6 VIN:D 1 per Vehicle 1979 4.1L 250cid L6 VIN:D 1 per Vehicle 1980 4.1L 250cid L6 VIN:D 1 per Vehicle 1981 4.1L 250cid L6 VIN:D 1 per Vehicle 1977 5.0L 305cid V8 1 per Vehicle 1978 5.0L 305cid V8 1 per Vehicle 1979 5.0L 305cid V8 1 per Vehicle 1975 5.7L 350cid V8 1 per Vehicle 1976 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1977 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1978 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1979 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1975 6.6L 400cid V8 1 per Vehicle 1976 6.6L 400cid V8 1 per Vehicle 1977 6.6L 400cid V8 1 per Vehicle 1978 6.6L 400cid V8 1 per Vehicle 1979 6.6L 400cid V8 1 per Vehicle G30 (16) 1975-1981 1976 4.1L 250cid L6 VIN:D 1 per Vehicle 1978 4.1L 250cid L6 VIN:D 1 per Vehicle 1979 4.1L 250cid L6 VIN:D 1 per Vehicle 1981 4.1L 250cid L6 VIN:D 1 per Vehicle 1978 5.0L 305cid V8 1 per Vehicle 1979 5.0L 305cid V8 1 per Vehicle 1975 5.7L 350cid V8 1 per Vehicle 1976 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1977 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1978 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1979 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1975 6.6L 400cid V8 1 per Vehicle 1976 6.6L 400cid V8 1 per Vehicle 1977 6.6L 400cid V8 1 per Vehicle 1978 6.6L 400cid V8 1 per Vehicle 1979 6.6L 400cid V8 1 per Vehicle Impala (10) 1975-1979 1978 4.1L 250cid L6 VIN:D 1 per Vehicle 1977 5.0L 305cid V8 1 per Vehicle 1978 5.0L 305cid V8 1 per Vehicle 1979 5.0L 305cid V8 1 per Vehicle 1975 5.7L 350cid V8 1 per Vehicle 1975 5.7L 350cid V8 Trim:S 1 per Vehicle 1975 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1976 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1977 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1978 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle K10 (20) 1975-1981 1975 4.1L 250cid L6 1 per Vehicle 1976 4.1L 250cid L6 VIN:D 1 per Vehicle 1977 4.1L 250cid L6 VIN:D 1 per Vehicle 1978 4.1L 250cid L6 VIN:D 1 per Vehicle 1979 4.1L 250cid L6 VIN:D 1 per Vehicle 1980 4.1L 250cid L6 VIN:D 1 per Vehicle 1981 4.1L 250cid L6 VIN:D 1 per Vehicle 1977 5.0L 305cid V8 1 per Vehicle 1978 5.0L 305cid V8 1 per Vehicle 1979 5.0L 305cid V8 1 per Vehicle 1975 5.7L 350cid V8 1 per Vehicle 1976 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1977 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1978 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1979 5.7L 350cid V8 VIN:L,M,P 1 per Vehicle 1975 6.6L 400cid V8 1 per Vehicle 1976 6.6L 400cid V8 1 per Vehicle 1977 6.6L 400cid V8 1 per Vehicle 1978 6.6L 400cid V8 1 per Vehicle 1979 6.6L 400cid V8 1 per V
