Hello, everyone!!! new to the forum (1st post of many to come!!!) I just acquired a 77 pickup, all seems to run well (cold start, and normal operation seem spot on) planning a few upgrades here an there. Unfortunately I need to register the truck in California (NNNNNNOOOOOO!!!!) but the truck failed with flying colors!! It failed the CO% measurements, and I was told at the smog shop that it is caused by the Carb not being set correctly. Carbs are not my strength, as this is the first actual vehicle I own with a carb. Asking for help as to what I would have to adjust to get the carb dialed in correctly. Any input is greatly appreciated. And thank you for you help peeps!! Thanks! l2ewind!!!