.hej. i got those 2 brackets with my nos heater valve to,but they are not what yoy need.Bill Rolik enterpises,BRE has a copy of the oem bracket that fits like a glove,its nothing like those 2 brackets in your pick. get it. on my -70 cuda the cable comes out of the same grommet that the vacuum supply goes through.that grommet is on the passenger side of the car,its mounted with 3 screws.so ..if you have 2 holes in that grommet the cable should probably pass through it.if only 1 hole in that grommet, then it should probably pass through the fire wall at the mc, and your cable should have a thin plastic grommet/christmas tree on it where it enters thru a tiny hole in the fire wall.
did that help?