I talked to my brother last night and he said test session went bad. The roll over valve fell apart and after the car would get to 150ft.out it would fall on its face. Done this 4 passes in a row before he found it. Went to put fuel in after the 4th pass and it was laying where he could see it.
He was afraid to try any different settings until he made the car run again. Saterday's race he raised the launch and lowered the tire press. to 5psi. I ran 1.061-1.065 all day. Seems to work good like that for now but on a 95 degree day in July when th track is really greasy I think I will have to go with the 17x33.5 Hoosiers that I have, in search for 16" wheels....