guys my 2000 mustang is bogging down real bad. for instance it will bog down at 30 mph in 3rd and at 40 in 4th the worse gear is 5th i basically have to ride in 4th gear on the interstate cuz if im goin 55 its to bad of a bog. doesnt do it on take of though. ive been told the trans and ive been told the plugs and wires. what do you guys think? please help me out here thanks

 

are you just shifting to early and bogging it? fuel filter been done? plugs/wires/coil?

 

no i dnt think im shifting to early. the fuel filter has never been that i know of. i put new ngk plugs in it almost a year ago.