Oh no - how much did you tilt etc - thought I'd try tonight, but don't think I'll be home in time.
ARE YOU SURE YOU CAN SWITCH THE PIPES AROUND & RUN THE ENGINE!?!?!?! That just sounds like a bad idea to me, cos you'll suck any debris into the whole cooling system? I've heard of people flushing the system in reverse, but not swapping the pipes and using the car. Maybe I am being overly cautious though.