Stranded on the road, need help

[35xj]

Almost in Huntsville, al

04 950. 34 k on it. Faccet do. Recent valve check.
Bike is behaving like its running out of fuel sporadically
Doesn't sputter or die, but stutters and looses power
Idles fine, runs well at low speed, won't run well above 50
Continuously.
Bypassed fp made no difference.

N
Red some help on what is wrong

Help please!