Well I had to move the catch can - I guess it doesn't matter if the hoses are up and down but low spots in hoses that may end up having oil vapour sit in them and bugger up the flow isn't on. As well, the fact that the lower fitting on the can goes into the air intake at a weird angle and the other one comes in straight meant the shorter distance was to a lower mounting point.
I ended up putting it over another mounting bolt about 8 inches lower on the inside of the left fender and I can still get at the drain valve pretty easily. Hoses are straight as I can get them - lower one goes in behind the manifold intake pipe.
Install - Supercharger, boost gauge and oil catch can done - now a coat of wax and the car cover.