Good cam for 318?

I am changing the engine this winter, but in the mean time I thought I could spend an afternoon and give my current motor a little more zip and a nice lope. I know there will be a ton of different opinions, but here is what I have. Bear in mind I want low end power / torque and a nice sound would be bonus.

318, supposedly with a light cam
Edelbrock RPM Air Gap manifold
Edelbrock 1406 600 cfm carb
Hooker competition headers, 2 1/2 inch exhaust
stock 904 tranny
Dana 60 with 4.10 gears

There was another thread similar to this a while back and it seems to me the most recommended was a Comp Cam 268H. Can't remember for sure, though. Ideas? Opinions?