I've run Eagles in 2 engines, I know of several guys in my area that run them. My 446 makes around 585 -600 hp stock crank stock caps 3450lbs ,5 years , I would guess 250-300 runs.
A buddy i race with has them in his 528, for 2 years and 2 years before in a 446, the 528 makes about 750 hp...