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Old 05-01-2018, 08:27 AM   #5
Keith Seymore
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Join Date: May 2009
Location: Motor City
Posts: 9,285
Re: 1980 C30 SBC (M code) factory exhaust configuration?

Quote:
Originally Posted by fordguy40 View Post
... but this being California, you never know.
Actually...you do know.

That's official GM documentation from the era in which your truck was built.

If some local guy at the emissions shed wants to argue with that then he is bumping heads with the people that designed and built your truck.

We use those charts during the design process, to make sure we have all of the permutations covered and communicate with the rest of the organization, and then they are distributed for Marketing use and stored for posterity.

We've used them in the past to help in importing to foreign countries, to show what options were available, or applicable GVW ratings, or that the vehicle has the proper content, so their use for a similar activity in California is not much of a stretch.

K
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Last edited by Keith Seymore; 05-01-2018 at 08:42 AM.
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