Sure I can do that... Went through the passenger cowl obviously... 3.25 hole. Then took hole saw and cut the fresh air vent box from bottom of the seam. Placed aircraft flex hose from the wood burner stove top through the vent box...
Then cut a hole in the center of the firewall. Used Spectra off the shelve coupler in the firewall hole. Connected hoses... Hoses in engine bay is Spectra hoses....
River Raider Air Box, Spectra vacuum coupler and throttle body coupler, Spectra hoses. Done. And yes the vent box still drains water and allows air in... The air is restricted but does work. But then I live in south Florida, heat isn't a concern...