Just joined tdr.com last night. Been reading the forums ever since I had a 94 dodge cummins 350 dually. Had a f-250 Powerchoke for about 3 years and finally now I have the truck I want. Ended up with a 1999 2500 24value 5 speed cummins. I bought an edge ez that was in the truck before it was traded at the dealer from previous owner. Quick question, when I give the truck what seem a normal amount of "gas" pedal, the engine revs too fast, before the engine can keep up. the tach goes from 1200 to 2100 and back to about 1700 then it seems it is at the right rpm's. it only does this in 4th gear, and every other gear is fine. Any suggestions on how to fix this problem. Anybody had this happen to their truck. Truck can with an exhaust brake, pyrometer, and it straight piped. It pulls my CAT skid steer 262 and Blizzard 810ss plow great. thanks, mark