Heat A/C duct work help

[85-K5Blazer]

Okay @wildweaselmi no worries. Just let me know if you want or need this ...

As for the Gas ... see what you think about this process. You could disconnect the fuel where the metal lines on the frame are connected by rubber fuel line and do the following... Looked like a slick method ...

 

[Wes Harden]

fuel pump relay should be on firewall above right side valve cover. Large oval shape.

not my photo stolen from the web. the black box by the bus bar.