Des,
I'm presently labouring away at the engine for my Brisfit and marvelling at the Rolls Royce Falcon you've so beautifully reproduced on this Build. I've gone through every reference I have or can find on the various posts here and elsewhere and cannot find the "plumbing" detail you've reproduced. Do you have a Reference you can suggest or share?
Thanks for your earlier photos of the rigging details, I'll be consulting them very often when I get to that stage for certain.
Cheers,
Lance