OK, with the stock 318 springs, I'd not be pushing anything that revs high and lift maybe to .440" max, and keeping the ramps sloooooow. I think willrun318's cam is more on target; knarly idles come with a cost when your CR is low to start with.
I know I would change the springs and go with a faster ramp.... preserve that low RPM torque for when you decide to haul 2 couches.. or pull a boat up out of Dale Hollow!
I had lunch at the Pizza Hut in Burkesville not too long ago....
