Is THIS the right sort of hose for attaching Throttle bodies to manifolds? it states fuel resistant but not to be immersed in fuel permanently??

Should be fine, there is a fuel resistant inner layer (the black coloured layer), the blue stuff isn't fuel resistant so it can't live inside a fuel tank like the stuff used on immersed pumps.

Make sure the throttle bodies are supported by brackets and not just by the hose - someone had them vibrate off and spray fuel all over the engine bay iirc

Thanks Ian.

Yes I plan to support them via an airbox, and mimic as close as I can their setup on the bike, i.e. supported both ends. That method was quite successfull with the bike carbs on my last project.

If you dont want to buy the large quantities I supply a fitting kit consisting of 4x 50mm lengths of that hose and 8 stainless hose clamps for £24 posted.

as seen here: http://www.locostbuilders.co.uk./forum/46/viewthread.php?tid=135349