[COPO427]

See my site too. Other things to look for are:
-gauge pkg is standard
-150 mph speedo
-8 grand tach
-front and rear sway bars
-rear leaf springs
-12 bolt rear with 3.73 or 4.10's
-low bucket seats, headrest is separate and adjusts
-Muncie M20, M21 or M22 or auto trans was avail
-no A/C on Z's
-no front spoiler
-1 piece spoiler or 3 piece is available
-dual sport mirrors was an option
-duals into a single cross flow muffler
-dual chrome tail pipes, some were welded with a chrome attachment which were straight out while others cam fully chromed to the muffler and were angled inward.
-780 cfm holley
-2 core rad
-clutch fan
-A.I.R. pump
-chrome shifter knob with a 4-spd with console
-black 2 piece shifter knob with a chrome bottom
-R/S is an option with the split bumper as long as the signal lights are round and beside the headlights
-5 spoke 15x7 mags with centre cap and trim ring
-windshield antenna
There's probably more but that's off the tip of my head.