I have a '96 z28 that has given me some trouble starting here lately. When i start it it cranks for a long time before it finally starts. It always starts up but it usually takes a little while. Any ideas on what could cause this?

 

tune up or a weak batt.

 

Ive already replaced the battery and that did not help. I checked the fuel pump and filter yesterday and both were fine. Car runs great just takes a while to start.

 

Plugs and wires?