Header nitemare
also try to "tilt" the headers down by letting the colector end of them go down first and then try to move the headers towards the firewal and tilt some more down and then they will slide out easier since you will get more space one you manage to get most of the headerpipes rear of the stearingbox, hard to explain in words...
but like everyne else says that stud will problably need to come out :(