88 nova hard to start when warm

I just picked up a 88 nova with 200000 on her. I changed the fuel filter, plugs, wires, cap and rotor. The problem is after it is warm and I shut it off and then go to start it up again it turns over about 10-15 times before it starts. When its cold it starts right up. I am not sure what else to do or if I have to just deal with it. Any help would be greatly appreciated..