hmmm well i can say ive never heard "the valve timing change" in any of my friends GA's. And ive even drove one a couple time with a weapon R intake. and by looking at steph's dynograph of her ga upabove, me dont see any spikes like yours. i see his shift at the start of 3rd im guessing since it should be 1:1 on the auto, at the start of the graph. where as yours has the first spike which i would guess is the shift but that second spike in the middle of the graph is unexplainable. cause these are two GA16DE cars here and one has a spike where as the other doesnt. which is which