Another aspect which I don't think anyone has considered is where you live.
I bet it's a lot easier to run a hypo aircooled mill in europe than in Australia or the US.
I saw 48 degrees c on my dash temp guage the other day.
Try and keep your heads cool in THAT ambient temperature.
Wally let's promise NOT to discuss this when I vist in August!
I don't want you to kick my Subaru lovin arse to the kerb mid roadtrip !!!