going back to the mopar bov

right now i have the raptor bov, for a few days my car felt good, now it doesnt pull as hard and ive down everything i can think of, i had the same problem with the iceman 60mm tb it felt good for few days then it started to go funny, i put the stock tb back on and it felt really good now the bov, wtf. my car runs much better with stock parts. has anybody else delt with this. thanks