So as I briefly mentioned in a previous post, the power brakes were...not. No power assist whatsoever. Power brakes generally need at least 11 inches of vacuum to function, ideally above 15. This is typically dictated by your camshaft - the bigger and lopier the cam, the lower the vacuum generated.
The Hemi's cam produces... 4 inches of vacuum at idle. That is definitely not enough!
Some Internet searching found that you can buy a vacuum pump kit for ~$300US, but by tracking part numbers I pieced together a kit (rotary-vane pump, vacuum switch, and relays) for about a hundred Canadian pesos.
Fabbed up a simple bracket that tucks the pump under the battery tray. Incidentally, the pump says GM on it because it's a pump that Hella builds for GM for use on the modern V6 Camaro - apparently the variable camshaft timing on those cars can lead to low generated vacuum in some cases so GM installed a pump to keep the brakes working. Works perfectly for our application and is much, much quieter and smaller than the big diaphragm pump that are common on cheaper aftermarket kits.
You can juuuuust see the pump hiding under the battery tray if you look from the right angle, nice and hidden.
So now that the brakes work, we took the car out and did the engine break-in procedure and the car is.. done?? I think? I've said that a few times, so I'm hedging my bets!
Had a nice fall day for pictures, too.