Depends on what your trying to do. If your trying to keep it on the street, I would run a mild cam, some GT40 heads and GT40 intake. Aluminum heads are nice and usually flow like a bat outta hell but their very high maintenance. They have to stay cool or they'll warp. Thats hard when your battling stop light to stop light.
Now if you don't drive it often thats another story, Aluminum heads (AFR's or Trick Flows) Holley or Edelbrock Intake and a beefy cam roller rockers. But if you do all that you gotta swap out those crappy piston 93 blocks have.
Don't forget you can add some kick in the pants with some gears for that rear end 3.55 are good for the street, 3.73 are dual purpose gears (track and street) and 4.10 are track gears.