[70 Forest Green Zee]

[ QUOTE ]
It did not matter where it was originally built at.
Begining in 1970,if the vehicle was to be sold Brand New in the State of California,and some parts of Nevada,it had to have RPO NA-9 known as E.E.C.-Evaporative Emission Control.This is the Charcoal Cannister capture & return line system w/under carb.cooling plate.
Not to be confused with the A.I.R. system,which is the Smog Pump and Diverter Valve system in which All Solid lifter engines were built with,regardless of where sold new.

[/ QUOTE ]

Mr70 is absolutely right again....I have a Calf built 1970 Z28 also sold new in Calf and I'm fortunate to have the build sheet for this car. PRO code NA9 is there just as Mr 70 states. Although the smog equipment is gone from my car, the canister on the drivers side is still present, and I don't recall seeing this on other 70 Z's without Calf emissions.