If your not going to try to set the streets on fire, keep it basic and strong.
If you want it to look stock but run a little harder there are plenty of mods you can do without giving it away.
First locate a reputable machine shop to do the work. Its the little thigs that add up.
You really wont need to use forged pistons for what you are looking to do. Go with a .030 overbore and have it honed with torque plates. Order your rings .035 and gap them yourself.
Have him square up the deck and resize the rods with good bolts. He will also check the crank and balance the rotating assembly.
Put together a good solid shortblock*then move on to the heads, cam and intake. This is where you can make some good power.
I dont know what your budget is but a little bowl work and a quality valve job (multi angle/back cut valves, etc) can really wake up your engine. The stock intake is not too bad a piece, just match port match it to the heads and go with it.
Cam choices are vast but more than anything you dont want to go too big, which is the quickest way to kill all your other mods. I would stay around a comp or voodoo 268 type grind.
I would use the voodoo 403 if it was my engine. Two things you need to discuss with your machinest is compression ratio and set up clearances for your heads/cam combo.
With your small cam/iron head combo I would try to stay around 9.75-1. With a little tweaking you should have a stock appearing high thirteen second a body.
