well had my 2nd set of runs this weekend ... never knew the coolant overflow tank was important till I overheated and my alternator is well , dead ..of the 10 guys running in our club 9 broke stuff . by I did find out my 60 will run while the nose is pointed DIRECTLY up in the air ...standing on the rear bumper , sorta spooky .... now I need to reset up some pesky coolant overflow tank