dougs headers dont clear my z-bar clutch linkage

Installing my 408 in my 1970 dart with an 833 4 speed. Got the drivers side Doug header in. My clutch linkage is sitting against the inside of the header. It will move but is touching the tube. It is the end that connects the clutch fork to the zbar. Can I not use the spacer that connects the zbar to the bell housing or is there a spacer that is thinner as I don't need much. The passenger side requires the torsion bar be removed. Hate these moments. Any tips will surely help