Just as advisorguy says, its that quick,and all of a sudden your at least 200rpms higher, and yes the rpms are higher and the engine is definetly runing higher.As I said in one of my threads, I think something is happening in the ip without any outside help. Advisor guy, what viscosity oil do you use, I use rotella 5w-40, I wonder if it may be to thin for the warmer weather.
DOES ANY OTHER 617 OWNER HAVE THIS HAPPEN TO THEM, LET US HERE FROM YOU, THANK YOU.

Peter