My 89' N/A 3.8l seems to be a tired little guy. Heres the problem. If i go into WOT the engine just...doesnt do much. Its as if its just lazy. It just gives a bit of a rumbling noise. I thought perhaps my cat might have been clogged and there was just a restriction holding the engine back, but I ran the car with open headers and it still performed the same way only a bit louder. I havent had time to check the EGR diaphram or solenoid yet, but ive heard fords are notorious for EGR problems. Any input would be greatly appreciated.