AC heater box to non ac heater box 68 barracuda

Sorry about delay. Give me a couple hours and I'll see what I can come up with. Right now, drinking coffee and thinking... I might clamp a framing square to the firewall and work off it. If that works it would be to your advantage to have one there also. Don't go round up one yet though.
any of u guys ever try an aftermarket heater, like summit offers?
the are a lot smaller, and not too high anymore,I may look into it further down the road. my after market heads are a lot longer than stockers, not much room for the heater motor!
sorry, didn`t mean to hi-jack this thread, thot u might be intetrested in looking in to it,--------bob