What cam to use in 340

My plans so far are to use my "J" heads unless the Edelbrock headed 318 I'm selling does not sell then I will rob most of that engine for the 340. As the cam goes I'm torn. I have gotten some great suggestions and a friend of mine is trying to convince me to go solid or even roller, but he is not the one spending the money to build it. I have some more figuring out to do.