here's the scenario...

1. im at a red light... turns green.. i floor it..
car goes fine.. 1st 2nd 3rd.. so on.

2. im at a red light... turns green.. i floor it.. and make a right hand turn/or left secondaries open at 3,500. car hit 5,000 starts bucking like a wild horse and the rpms won't climb. then i let off the gas and regas and everything is back to normal. does it everytime. started 2 days ago... any advice??