1977 Blazer required emission parts

[ezmaggie]

HELP! I have a 1977 Chevy K5 Blazer and I need to know what was required of GM to install in its vehicles to pass the emissions test programs. It was built at the Fremont plant ( was checking out what all the letters and #'s meant in my VIN #, one night) It's a 350 small block, factory air (however not hooked up at present...no compresser!) It is an Arizona truck...Maricopa county. Can anyone head me in the right direction to find this info out. I am running on an expired 3-day pass?????? Thank God I only work 3mins from home Thanks PS. the truck is back on the road after 6 years and I'm driving it:p