i need a 77 buick regal carburetor vaccum diagram

They are two different motors, with some differences. the 350 is a 5.7 the 6.8 if I am not mistaken is a 454 This should be a pretty close diagram though. http://dave.h-body.org/Building%20the%20SFI%20Vega_files/image030.gif

You can get Chilton s repair manuals at auto zone it will had carb vacum e diagram, but make sure you know witch engine the 350buick is code h or j, if you have a Chevy motor code l,

You can get Chilton s repair manuals at auto zone it will had carb vacum e diagram, but make sure you know witch engine the 350buick is code h or j, if you have a Chevy motor code l,

7.4 is 454