75 400 Need Vacuum Diagram

[Grandma's 75 Catalina]

Howdy everyone I recently got given my great grandmother's 75 Catalina with the 400 with a 2 barrel Rochester carb. It has sat for about 25 years in a airplane hanger where I pulled it out and managed to get it running in one day. Anyways I need help I need the vacuum diagram as I have one stray vacuum line that I can't figure out where it goes for the life of me. If any pics are needed feel free to ask TIA!

 

[melsg5]

See if any of these help

N

Thread '1975 455 fed Colored vacuum diagram'

Jan 21, 2023

Does any one have a vacuum diagram with the hose colors on them ?? I have this but it has no colors listed can some share if possible

• NOS118
• Replies: 6
• Forum: Pontiac Grandville Forum