that goes for all fulllength abody headers i know of:)
tti are the only ones i know of that dont run the centerlink trhu them not realy sure what brand dusterboy is is instaling but ..
*most headers for abody mopars install from under the car.
*take out the studs in the front and back bolt holes in the cylinderheads they are long and eats up space..
*take out the starter, reinstal it before bolting the headers to the heads it will go in there but its eating up space while you are trying to install headers.
*if you cant get the space only lifting motor put it down again and reinstal passanger side motormount, then lift motor again so you tilt the motor over, this will make some more space, it may not seem right but try it.
*make sure front of car is high enough above ground, most headers go in with the front end first upwards and colector pointing downwards, yeah it sounds stupid but thats the way it is and the colector angled alitle inwards in
under the motor then as soon as cylinder#1 primary tube is above top of stearingbox start tilting headers back level while lifting it in place.
not sure what brand headers you are instaling but they are all alitle pain in the *** to instal hooker#5116 have a sliptube#1cylinder primary tube that makes them easier to instal and TTI have a sliptube #7primarytube for ease of instalation but except for those i think they are all very similar
someone correct me if i have writen anymistakes here ;)