Originally Posted by Dennyboy
SCT tune is the way to go. it'll be a whole new beasty.
that doesnt really help his problem, nor will the sct work on his truck its obd1.
now doing a full tune up including plugs wires all new fluids pcv valve check all your vacuum lines, and make sure you got good clean gas. thats a start if you still feel down on power then do a compression test.