Camshaft ID help please

[roj2323]

hey guys,
i got my hands on a FREE 350 bored .030 with flat head pistons and i have just about everything ID'd but the cam. i've tried everything i can think of with no luck. as far as i can tell it's not a stock cam and since the engine only had very few miles on it the cam isin't even broken in all the way. if you can help please let me know. here's the number on the back of the cam stamped:

2019 m c

thanks,
ondrew