As Fast said, back in the early Direct Connection days thr Racer Brown SSH-44 was the 509 purple shaft and I believe (don't quote me) the SSH-25 was the 484 cam with about 241 @.050.

In the early DC Engine manual they referred to the 509 as the 4 speed bracket cam and the 484 as the Automatic Cam

the 484 was a great 440 cam and the 509 got used in a lot of tight converter cars but still worked pretty decently.

The typical hot 440 set up for the Day was the '67 closed chamber 915 heads shaved at least .040" with a 509 and a TM-7 /4779 (750 DP) and a 340 or 383 (10 3/4") 'Road Runner' Converter. We used to put the cam in +4 rather than straight up. With 3.91's or 4.10's you could bust almost anything pretty consistently...Until the W2's started becoming available.