i didn't mean to sound like a dick. get the transmission in first , that way the headers are not in the way. after that you will be able to lift the engine and move it around, and , it will be sitting where it is supposed to. you will have to dimple the header where it hits the steering box. remove the oil filter to get the passenger side on and use a short (ph43 or equivalent) or a 90 degree adapter. I have put on a number of these long tube headers with no issues and they work well, but can be challenging for some people. put the drivers side on first that way you have room to push the engine over. the passenger side is a piece of cake.