ok guys, would u think a faulty fuel pump will cause hesitation, since it would be pumpin out too little fuel?? and how bout o2 sensors, would that cause hesitation, and last how can i make sure my timing is correct, so i dont have hesitaion, thanks

 

Yes the fuel pump can cause hesitation and when it gets real bad it should throw a lean exhaust code.
On the timing issue you just make sure the base timing is set properly.

 

Mine just went from fully functional to dead. My pump didn't even give the ECU a chance to throw a code lol. Boy was that a pain to get in a replacement.