How many miles are on the truck? Does it do this in all of the gears? Has the SES light come on anytime recently? It could be a clogged catalytic converter, a bad plug or plug wire, or possibly a clogged fuel filter too. Might want to check those out.
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Shawn
2004 GSXR 750 - Yosh CF RS3 bolt-on, -1 front, DID, Watsen Design flush mounts, LP rear LEDs, Vortex frame sliders, Blue Puig DB, Pirelli Diablos
"Let us so live that when we come to die even the undertaker will be sorry." - Samuel Langhorne Clemens