Matthew, have you ever driven up Huntley?
It's a GREAT piece of road, just respect it, if you don't want to trash the street car, don't go 10/10ths! Back it off a notch.
Any hill climb track can and will bite and destroy a car. Actually, any race track for that matter. Look at the cars that turn sideways at WSID, cars into walls at EC etc.
I'm hoping to be out there early next year at Huntley for a proper race event so I can finally go up it under race conditions and at race pace!
PS: I'm a local too.