Cali Smog Test

[Pyrotechnic]

Originally Posted by spoon

So who all has successfully smogged a 383?

I haven't, but here would be my plan. Don't mention ANYTHING about it not being stock. Just play like it's the original 350 that came with the truck. There is no way they can possibly tell the difference from external appearance. Run a cam that will have a smooth idle. This will keep emissions in check and will not tip them off that they are being fooled.

Now this will be tedious, but you will need to use a Quadrajet carburetor. You will most likely have to richen the primaries up a bit. If you can find the stock metering rod and jet combination for something like a 400 small block, that would be a good place to start.

And of course, I'm hoping your truck passes smog at this point and has all the original equipment. Transfer all of it over and make sure it all works.