Brisket cheat method cuz box temps too low

[TexasJoeSmokin]

Smoking a 9 pound flat in the model one. Internal temp never got above 190 with the dial set at 2:50. Pull the brisket out at 170 after smoking it on Postoak and wrapped in butcher paper. Put brisket in the oven set at 275° for an additional four hours. The temperature got up to 200 and removed to let rest.

Any ideas what I can try to do to get the model one internal temps higher

 

[old sarge]

Is there any chance your brisket was in contact with the box probe or extremely close to it? I ask because there have been a couple of experiences posted years ago where the meat was touching the probe and throwing everything off.