Got a 97S with a 99r motor in it. It leaks from the top of the motor when I do 65 for longer than 10 min. Too much oil in the motor? Crankcase pressure issue? THe oli read if on F and I lowered it to half way but I'm gunshy of running it a 65.. Mechanic said he found alot of oil in the air bbox after the first leak. Changed the valve covers to the R and it leaked again