440 Need help figuring out what cam is installed

You want to know what cam is in it? There is no way of knowing without pulling the front end of the engine and hoping there is numbers on the front face of the cam. Short of all that you could measure the lift using a dial indicator but that still doesn't tell you anything other than what ballpark the cam is in. Of course you could always just run it assuming its built as a close to stock street engine. If it doesn't work you could then start changing things.