wot car stalls???

[1999_pontiac_ssei]

so the other day i was commin home from school and went to pass a 18 wheeler when the car started to spit and spudder and started to vibrate short... so i slowed down though it was strang didnt notice it any more ..then i thought about it and what coulda coaused it so i eased the throtle down to see if i could hear something but as soon as the car went in to wot the car stalled so i costed to the side of the rioad turned the car off started it right back up again ....if i keep the car 90-100 on the highway it will be fin but any more then that and she stalls ... any idea what could be causeing this ...i will be replacing the plugs and wires tommro to see if the fixes her or not .....other then that what could cause it ....o and leaving the drive when and it gose in wot it stalls and when she gose above 2600 rpm in 1st stalling happens aswell .....anythoughts ?

[00Beast]

Change your fuel filter. Sounds like it's not getting enough gas.