I have been having some trouble with my acceleration lately.

When I am am stopped and press the gas to accelerate the truck hesitates and lowers rpm quite a bit then will kinda jump forward. after I am moving everything is fine.

About the truck.

94 f350 4x4 reg cab. 5.8.

 

How long since last tune-up (plugs, maybe wires, fuel and air filters)?
Might be worth seeing if there are any trouble codes stored.