so i got my 87 TII to run pretty easily , but i still have some sputtering that occurs when you dont floor it so you can touch the gas and cruise a little bit but if you give it have pedal she spits and backfires but doesnt really accelerate . if you floor it she flies with out trouble , any i deas where i should start?

 

my air to fuel gage goes back and forth as well and smells rich as hell but runs smoothly at idle and full throttle