Emissions help

It's a very lax test your '67 has to pass; if it fails, it is truly running ridiculously rich and not only stinkin' up the air but costing you a lot of expensive gasoline money. Fix it!
Tune-up parts and technique suggestions in this thread. Carburetor operation and repair manuals and links to training movies and carb repair/modification threads are posted here for free download.

Keep in mind that if the fuel pump diaphragm fails on a slant-6 engine, it'll shoot gas into the crankcase, which will then be sucked up into the intake tract via the PCV valve. Quick check for this: pull the dipstick and smell it. If it smells of gasoline, replace the fuel pump and change the oil.