The short question is how do I figure out what I can do to my trucks and
> keep them smogged in Calif.?
>
> I have a 2003 GMC pickup (Z71), and a 1978 Chevy 1 ton 4x4 pickup. >
> The 1978 has a 350 that is horribly under powered, it needs help. I
> can't get a straight answer from the smog stations or DMV or anyone. Is
> there some way to figure out how much I can do to this truck and still
> be Calif. smog legal?
>
> The 2003 GMC runs pretty good but I'd still like to beef it up a bit, so
> same question there, how to figure what's legal?
>
> I've checked out quite a few performance places and I guess I could
> assume that a collection of "Calif. smog approved" performance upgrades
> would be OK. The problem I have is it would be a lot of work and
> expense to install everything and find out there was some dependency or
> something that I didn't know about.
Here's a link to the CARB page where you can search for exempted parts. If it's listed here, you can use it.
formatting link
Sean