360 question

well i was looking at the cam closer today and the guy sold me the wrong cam on the box it says edlebrock 2177 but on the back of the cam its stamped EDL-7177 and then the cam card also says its an edelbrock 7177 performer rpm cam now my question is that cam to big for the stock valve springs on a 79 360 you guys have been a great help so far i was just wondering. thanks here is what the cam card says Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 308/318, Lift .488/.510, Mopar, Small Block, Kit