GASKET, Carburetor Mounting, 1.68 inch primary hole, 1.76 inch secondary hole, 4 hole openings, .046 thick paper,The applications show abbreviation codes C2M, C2S and S2M which breakdown as:C2M = Carb to intake manifoldC2S = Carb to spacerS2M = Spacer to intake manifold

1965-1966 MUSTANG 289-4V, C2M, S2M, 2 REQD

1968-1968 MUSTANG 390-4V GT, S2M

1969-1969 MUSTANG 390-4V, C2S

1968-1968 COUGAR 427-4V, C2S, S2M

1968-1969 COUGAR 390-4V, C2S

1965-1966 FALCON 289-4V, C2M, S2M, 2 REQD

1964-1964 FAIRLANE 289 HIPO, C2S, S2M

1965-1966 FAIRLANE 289-4V, C2S, S2M, 2 REQD

1966-1967 FAIRLANE 427-4V, 427-8V, C2M, S2M, 2-4 REQD

1968-1968 FAIRLANE FAIRLANE, TORINO, 390-4V GT, S2M, 1 REQD

1969-1969 FAIRLANE FAIRLANE, TORINO, 390-4V, C2S, 1 REQD

1969-1969 FAIRLANE FAIRLANE, TORINO, 429-4V, S2M, 1 REQD

1970-1970 FAIRLANE FAIRLANE, TORINO, 70 1/2 FALCON, 429-4V CJ, S2M, 1 REQD