Q-jet differences?

[Graeme]

Are there any significant differences among the 78, 79 and federal 80 turbo Q-jets?

 

[b4black]

I think any difference would be minor vacuum lines. Diagrams can be found on this page:
http://home.flash.net/~rjgeorge/tnotes.htm

 

[Graeme]

Thanks. I know some of this is basic, but I'm trying to lay a foundation for some system choices.