work in progress

iTrader: (2)

Car started with an intermittent miss, then started running bad under WOT, then threw a P0106 code. I removed the code checked connections and vacuum lines then started and no code, but it runs BAD. I unplugged the MAF, but since my car is tuned for the cam it wont throw a code.(not sure what he did with VE table) I replaced the map sensor (had to remove the manifold), put everything back together and still the same. Should I just go and buy a new MAF and see if that is the problem? Also, black smoke when I rev it...