1970 Duster

your two post lift will work great. Sweet motor. I would suggest you place the headers in the engine bay first and then drop the motor in, the drivers side header is a ***** to get in if you have the motor installed first, the passenger side is now problem. Just my 2 cents worth.
these are TTI headers and they have a removable tube on drivers side to clear bar, won't they just install from underneath car? but, if I have to lay them in engine bay first, I guess I will have to put some blanket down to keep from scratching paint.