So it's is grounded directly to the frame. I don't have a good wiring diagram for the fuse block on the 1967 firebird otherwise I could just see what is one the firewall side of the fuse block and see if I could figure it out. I have the diagram from the '67 Pontiac manual, but it is different than the firebird and the firebird supplemental manual only has a picture of the fuse block but no details on the wiring.

Next to ign fused it has the fuse for bk up and gauges directly to the left of the terminal.

I'm not sure if the image from my first post shows up so I'll try again here and see if this works better. Photobucket apparently quit hosting images so every forum is just filled with blank images, but I digress. Giving Imgur a try.



As for the brakes. I only have about 10-12" vacuum as of last night. The car does need a tune bad, but since the cam is basically a regrind of the ponitac 041 in a 400 ci I don't think I'll get much more vacuum.

The brake kit has a 9" booster. Its the right stuff detailing AFXDC14. I did a small test drive around the neighborhood a few times. The power brakes work at first, but then it feels like once I press them halfway, they turn back to manual brakes.

I ordered a vacuum/boost gauge, a vacuum canister, and a vacuum pump. I'll install the canister first and see if that helps, then if necessary I can add the pump as well. I also will test the check valve on the master cylinder, but I think it is fine.