Do a double-dose of Diesel Kleen (grey bottle) and an oil change, then run it hard. I had a "sticky" injector on mine, and after a few hundred miles with good oil and injector cleaner, it was a new machine.
Absolutely wont hurt a thing to try it.
"You can finally say you have enough horsepower when you leave two black streaks from corner to corner"
(Mark Donohue, famed TransAm driver)