#1
ive been into funk and playing it a lot. i jsut wanna know if theres a good scale that i could write a nice funk song out of
#2
Check blues scales, pentatonic, mixolydian and dorian scales, or use the 7th.
That sounds funky to me.
#3
improvise, get a groove....try using a drum backing track!

and my friend for funkyness, use alot of compression and\or a wah
#4
the key to funk is syncopation and chromaticism. the scale you use to when playing it is really irrelevant. the funk is in the rhythm. like i said, the only real 'note' tip is to use chromatics.
#DTWD