95 Stang takes a long time to start!

It was like this even before the addition of the Kennebell. Sometimes the car starts right up when I turn the key, other times it takes a few seconds of turning it over before it starts. Here are the steps I have taken to try and remedy the ailment. 1. Replaced Fuel pump with new 190LPH. 2. Changed Fuel Filter. 3. Checked timing. 4. New plugs wires cap and rotor. 5. Crane ignition system. What else do I need to do? Thanks everyone for your input.
 
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