Are you really complaining about the prop valve hitting and you're putting in a gen 3 Hemi in a 73 Duster? Would it not have been easier to move the prop valve.
why advertise something that fits when it doesn’t? I didn’t mention I had to clearance it for the motor mount in the front driver side where header hit the mounting bolt on the block, or the driverside torsion bar hit the header as well. When you pay 700 for a set of raw headers you think you’d get something that fits.