Quantity of 8 H9B (WA125T40) Bosch Spark Plugs that fit:

1967 Buick GS400 400-V8

1967 Buick LeSabre, Wildcat, Electra, Riviera 430 V8

1968 Buick Skylark, GS 350 & 400 V8

1968 Buick  LeSabre, Wildcat, Electra, Riviera 350, 430 V8

1969-1970 Ford Mustang Boss 302/290HP, 429 V8 (14mm)

1970 Mercury Comet, Montego, Cyclone 429 V8 (14mm)