Anyone have or know where I can get my hands on a vacuum schematic for a 1977 351M?

Thanks for your help

 

Dennis (Mil1ion) will have it but he'll need some more info. Is it California or Federal Emissions, High Altitude, Manual or Auto, etc. There could be a sticker on the passenger side valve cover (probably gone though) that will have calibration codes. This information will help getting the right schematic.

 

thanks for the follow up. It's a Michigan built truck, Automatic Transmission. the original decal is gone however I purchased a replacement from LMC. There doesn't appear to be anything on it regarding calibration specs.