302 swirl port heads on a 360

thanks mark, I do plan on changing the cam right off the bat......is there any cam that will work well with a relatively stock bottom end and j-heads? I've tried to decifer cam specifics but I haven't done enough home work to understand the realtionship of duration, lobe lift, and seperation, and the other stuff. I've been going with the rpm range of the cam and total lift along with the little articles that tell you if it has lope or needs a stall and such.