calibration code and specs from MillionMillion, I spent a few minutes pouring over the info in the link you posted.From what I can tell by reading it (correct me if I'm wrong), the 49 state and CA specs, though a different number, are the same. I didn't see any differences in carb settings...

thanks, need to checkBill,thanks, I need to check--will do so when the sun comes up! I think it is a CA vehicle but I didn't know how to check.Million, the calibration code you gave--is that for the engine? When I first got the truck I had a shadetree mechanic work on it and he...

too many little questionsDessert Rat, did you get your truck smogged? I'm in a somewhat similar situation, I purchased a '78 F350 flatbed, it's passed smog a couple of times (once when I got it, again about a year ago) but I'm certain the vacuum lines aren't setup properly and want to get it...