When was the last time you saw one of these (mystery race engine purchase)

Only if the last owner/builder is a stupid ***. With that head flow rate on top of a 440 and that intake, it would be a turd and a half.

On the Purple 292 note…. It did what the book would say it would do and did it well. It is a pretty big HFT. Low on lift.
Yea but he coulda been a lot like the rest of us cheap asses and got a top end for a deal and threw it on his existing bottom end. The .509 came in two flavors, one on a 108 lsa and one on a 114lsa. Other than those changes the .509 was the purple 292/292 cam. It was 248 at 050. Which purple 292 are you talking about?