1992 bonneville died on highway going up hill

Hello,anyone have any opinions on what may be wrong?The car was running fine until today we were on the highway going up a hill and it died it would not start on the hill though it acted as it wanted to,then we got a tractor to pull it off the road and on a level surface,the car started but then dies right away or when giving it any gas,i'm thinking the fuel filter I dont know where it is located and what I may be getting into,if it was the pump would it still start? anyone know?Many Thanks

Welcome to AF, typical fuel pump issue, have the pressure at the rail tested.