due to tank size limits and space limitations in my b-29 project.the attached diagram is the easiest way to install a 6 oz tank to feed the os 25 that is mounted horizontally.with the tank being mounted vertical behind the firewall.i have not tried this yet myself but am wondering if anyone has in the past and how well the engine ran from full to empty.i am going to have four of this setup running at once and do not need finicky engines that die..i do have one other option but it complicates the nacell building a bit but it is the same setup as on the stafford b-24 which i have and it works fine.just currious if this would work.