Hi, sorry for digging up an old thread.

I am just about to install a 28i and canister in an extreme flight 74" yak. I am trying to CAD up a support bulkhead for the engine but am not sure what angle to put the engine at to ensure the canister sits directly below the prop shaft? From picture's of installs I've seen it looks like when the bottom and top right bolt holes (when looked at with cylinder upright) are horizontal to each other gives this canister position.

If anyone could help that would be great!
Thanks,
Ollie