If they are flowtech, get ready to be a changed man after they are in.
I will never buy cheap headers again.
These pics are in a '69 Valiant 318, power steering, and with spacers under the motor mounts adding up to about 1/4''.
They still hit the steering coupler even after i smashed the tube in about 3/4'' or so. Plus i needed lots of little dings where they hit the steering box, torsion bars, etc. The passenger side was actually pretty good. They hang a little low, but not too bad.
BTW, i'm putting the stock manifolds back on until i can afford some Doug's or TTIs.