IIRC doesn't the Heater connection go to a small piece of rubber hose and then a steel pipe back to the bulkhead???
Any pix's???
I didn't have anything to work from either so guessed, i've got a plastic pipe with a bend in it that takes the heater connection over the manifold to a rubber hose for the heater.
The bottom hose drops to the chassis rail, runs along under the engine mount then up the diagonal by the pedal box to the battery shelf and onto the header tank.[/quote]