With the heads you have and the rest of your combination I would spec( assuming a hydraulic flat tappet,and a shelf grind) a Lunati 07303 Street Master.
The other grinds people have been suggesting may do okay in an engine with stock or stock Edelbrock heads,but with a decent flowing set of heads those big exhaust lobes end up " over scavenging " for lack of a better term.
Those cams help make power in some cases but just aren't what would be best with yours.
The Lunati I stated is 245/245 @ .050 with a 108 lsa. It will have enough overlap to give you a lumpy idle without pumping too much out the exhaust :twocents
Keith