I clamped some scrap angle with a radius on it to the heater box cover so that I could bend out all of the vents.
This will direct hot air from the engine down into the left and right footwells.
I also needed a notch on the right side to clear the heater box control cable where it passes through one of the firewall stiffeners.
I also cut a notch in the forward cover for the throttle cable. I’ll clean this up and install a grommet to protect the cable.