Newbie on board facing a steep learning curve. I'm not new to working on cars but am new to Panteras.
I'm working on a 1974 GTS with a 12/73 build date, originally sold in California. It has after market carb, intake, distributor, air cleaner, fuel pump, etc. The project is to return it back to original spec. It's not my car, for the record. I'm doing this for the boss :-)
Should I be looking for "D3---" parts or "D4---" parts? 1973-spec parts or 1974-spec parts?
I had a chance to examine another 1974 (L model, not GTS) with a build date of 6/74 (only 800 miles and presumed to be un-molested) and it has "D4--" parts, for example:
EGR Valve: D4ZE-9D475-CTA (CYA?)
Air Cleaner: D4OF-9600-DB
Emission label: D46E-96485-BA
I realize I may never find all the exact parts but, as long as I searching, I might as well try to get the correct parts or as close as I can. The 1973 stuff is much easier to find and I suspect (ha ha) that a lot of it is the same as 1974.
Thanks in advance for any advice