Opinions on low end 360?

Don't have time to change pistons now, plus I'm still on a pretty tight budget.
Think I forgot to mention that the heads are J-heads. I haven't cc'd them yet, will try to do it the next few days. I have a friend who can mill them for me if it will do any big difference.
After the summer I will have the block honed, get new pistons - or even a stroker kit, probably buy a pair of aluminum heads and build the low revving torque diesel like engine I really want, but for now - I don't know!
Mill the heads? How much?
Get a new cam and lifters.
Get a vacuum distributor
Put it together with the Performer intake and a TQ and drive it.
Hopefully will it perform a little better than before.

Still very thankful for all your input gentlemen!