Something we don't talk about much is cabin ventilation. After building a couple of these you realize how integrated that is into OEM design and how easy it is to F'up, especially when you no longer have a cowl. Most cars of this era depend on fresh air being prsssured down into the cowl and then routed to the cabin. And don't forget, that air also has to go somewhere, so you need exit vents. I had tried running 3" duct from the front of the car to the cabin before but I knew I didn'th ave room to do that so I built these ducts into the A-pillars and then run 3" brake hose to some fender mounted inlet ducts that you will see later. One duct goes straight to the driver with a manual door to block it off, and one goes straight into my heater box. I don't have pictures handy, but then I also built 3" ducts from the rear interior side panels behind the seats that connect to holes in the door jams. Sort of a crude approximation of the vents you see in GM car door jambs.
Here you can see the "HVAC" system such as it is, or maybe I should call it the HV system. Its the smallest cheapest heater you can get form Vintage Air. Like all of their stuff its designed to just breathe in cabin air but I didn't want to circulate stale air and the fan is loud, so I built an aluminum plenum around the intake fan and tied it to my passenger side duct. The unit is small but it produces plenty of heat at least for the NW. You can also see the wiper being built up. I would have loved a nice big vintage air repro A/C heater box, but there was no room behind the firewall for that stuff because of the 15" engine setback. I used the vintage air electronic hot water solenoid though so I at least had a nice smooth modern feeling knob for controlling the heat level rather than some kind of crappy cable. although I still use a cable to open and close the little defrost door. The system has worked well for heat and defrost, but the little squirrel fan is still loud. Its kind of amazing to me how well the original '67 ventilation/heater box system worked, its too bad I couldn't have kept those parts.
here is a shot of the finished insulated firewall (DEI tunnel/heat shield, pretty good stuff). You can also see the hydraboost brake booster adapted to dual M/C's.
I know these photos jump around the build process quite a bit but hey I'm lazy posting all this junk. I work on computers all day so I don't want to spend an inordinate amount of time posting.
In that vein, here is the trunk coming together and one sexy shot to keep you interested perhaps in the final build. The coolers and pumps are for the trans and rear end. I would have preferred an internal mechanicl pump especially in the rear end but couldn't afford it or didn't know about them when I had it built. Also note the fuel filler tube.
