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  1. General Engine Question: A.I.R. Pumps - How do they work?

    Hotrodding Basics
    Hi All, I just had a few general questions regarding A.I.R. pumps that I wasn't able to find the answers to online. How exactly does a A.I.R. pump operate internally? I am working on my '77 Chevy truck (non-EGR) and have a few things removed. I see the A.I.R. pump operates off the v-belt, so...
  2. 1977Chevrolet C/K Series Truck: Identification and Smog Equipment Verification

    Hotrodding Basics
    1977 Chevrolet C/K Series Truck: Identification and Smog Equipment Verification Hi All, I have a 1977 Chevrolet truck. It does not have a VIN plate on the driver-side dash nor does it have a data plate on the driver-side door jamb under the striker. In place of the data plate, there is an...
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