The 93 Chevy I have just fooled 300 k. Original motor...and it round like a top... The reason I suggest a good.....mechanic...I had a lot of little stuff go haywire at150-180 k it got real frustrating to just throw parts at it..
My son has an 87 that would do similar to yours...a 99 model with 160 k probably sits a lot his had rust build up in the tank,from ethanol...and would plug the screen on the fuel pump....put in a new tank from mc truck and problem solved...
By the way you couldn't give me another ford....lol