Here is a chalange. 1991 f-150 4.9 manual trans. has no pulling power and hesitates on acceleration. Here is a list of things i've don so far.

new fuel pumps in each tank, new feul filter, bottles and bottles of injector cleaner, new ignition coil, new plugs, wires, dist. cap, rotory button, air filter, new throttle position senser, new EGR valve, new map senser

Checked timing gears, and set timing, compression test: 169,170,170,170,170,170: run computer diagnostic, ( kind you get from autozone) code 322{ insuffeciant EGR flow} replaced EGR and unhooked battery for 30 minutes. Check Engine light went out, but now it run good but has a skip, even when driving, and still has no low end power. I sprayed carb cleaner all over the engine and floaded all the vacume hoses and intake connections with propane, no change in engine speed. pulled the o2senser and tested it with torch and got voltage change.

Engine ran smooth untill i replaced EGR valve, now has a eratic skip, even when in gear holding steady speed it skips. As soon as I hit the accelerater it hesitates then reaves up. It will spin the tires in 1st gear on dirt but on pavment, it bogs down and slowly speeds up.

I have to drive this to fla. next week for my son's wedding and I need it running better by then. PLEASE HELP, thanks, Len