Filled coolant bottle up to full cold line on my 07 Switchy then put up on blocks for both front and back(front a little higher than back end). Dropped it down recently to do some track work and start up when I noticed the coolant level had dropped down about 2 inches from where it was (can't find any leaks). Ran it for about 10 minutes on idle and then a few runs up to 1/2 throttle etc....Now the coolant has stayed at the lower level after cooling off but hasn't dropped anymore. What the Hell? Is there an air bubble in there? What is the best way to burp these IQ's? Lift front, take cap off and warm up to purge bubbles thru bottle?