I really need help!!!!

please help me figure this out you gurus. my /6 is not running right at all. it is really rough at idle and will just shut itself off when you hit the brakes in drive. i can tell that the choke is not closing, could this be the problem if so how do i fix it? also just found that there is a hole in my brake line, is there anything in the car that would shut down the engine if the brakes dont work? please help me fix this!!! this is my daily driver and i need iot for work.

thanks
marc