I have been told that fuel injectors are color coded for fuel imput or lets say rich or lean. None of my books 75 service manual, Chiltons or Haynes say anything about this. I have just gotten 77 with a N47 head that has a mixture of green,white/ivory and black injectors. My 75 has a N42 head with white/ivory injectors. My 76 has a N42 head with black injectors. I have a set of white/ivory and black injectors. Anyone have any suggestions on what I should put in my 77 with the N47 head

I think you must have a mixture of different brand injectors. 75-83 Z/ZX non turbo all used the same injectors.

Thanks for the info.mation. Is there anyway to check the injectors before installing. I have also heard of sending them in to get cleaned, whats this about.

Following url link tells you all about the process:

http://www.witchhunter.com/process2.htm

Pretty cheep as well....as compared to buying new injectors. Now that will set you back some money.....

webdawg1