501 flat tappet cam how much horse power .

ok i have a camshaft sitting here i am thinking of putting in my 501 i will attach a picture of camcard and see what you guys think
engine is 10.3:1 iron heads d20e the cam i had in engine was a m6250 a514 solid roller int 254 exh 258 .647 lift 112 lsa
the cam i am going to put in is attchaed picture if you guys try to guess hp differance