Throttle bogs

I just bored up my new blaster it has a FMF fatty and power core 2 when I start to take off it kinda bogs down do i need to re jet it?

Bogs down like gurgles/feels rich/hesitant or falls flat on it's face??
Was there carb work/changes during the top end job?

Reeds possibly affected/not seated right/damaged after install/break in?
 
What size pilot is it??? If its stock its gonna be a 32.5....turn the a/f screw all the way in, then back it out 1.5 turns....that might solve your problem....and what clip on the needle are you running??? I'm 2nd from the top....thats what most are i think....correct me if im wrong guys...