Eagle cast crank? I would definitely change it. Forged, I see no reason. Currently running Scat cast crank, shifting at 6500 crossing the stripe at 6800-7000, but a clock is ticking. I know practically nothing in regards to cams. I would call a reputable company and tell them what you have and what you are doing. See what they say.
Yeah, crank is cast, everything else is forged. The 500+ hp numbers I gave on my initial post is at 6800 rpm so even though the specs are at 500hp/700hp depending on the source, it makes me a little nervous. What kind of power are you making?
I ran a couple of different cams through the calculators without any real difference in hp numbers, so don't know why the cam should be changed - but I'm a newbie at this so figured I'd ask.