I can put the pedal to the floor and it slowly speeds up. then all of the sudden it kicks in and goes.
my 05 Bonneville will bog down and wont accelerate when im driving down the road on 2005 Pontiac Bonneville
If it is in over drive, then a short pause and then acceleration is normal. However, if it occurs outside of OD ten it could be a dirty throttle body, bad plugs, or dirty injectors.