Why No 421 Super Duty in current NHRA Guide?

[FED 387]

Beswicks car if I remember back in the late 70's early 80's a guy named Ray Bisic SP or something like that had his old SD car Silver Catalina 2 dr HT blue interior--- Raced at Union Grove WI he was a beer truck driver lived in Chicago or north suburbs of Chicago---FED 387