Header installation ??

I have install hooker 1 7/8 &1 5/8 primary tube header on several times as was said in a previous thread the car must be up 3 or more feet and the engine up off the motor mounts the hooker are two peice units and the drag link must come off. they go in from the top it is a pain in the butt, with a little care, some well chosen @#$%words and if you hold your mouth just you will have them in. this has only been done by me on a car without power brakes or steering good luck