Hard start

I've finally gotten my car running well enough to start driving it places a little farther away. Thing is, if I go into a convenient store or shut it off for a minute or two, it's hard as hell to get it running good enough to get going. After I get it running, it's fine. I've replaced the fuel pump, filter, new plugs and wires, rotor, and distributor cap. I've managed to repair the vacuum leak (brake booster). What else is there?
Author: Deano