Originally Posted by InfiniteVTec
the power dipped at the same point at each run, the a/f was stable and there was no missfire. The guy tuning my ride said I probably have deffective valve springs and i'm getting valve float.
That doesnt make sense to me at all, you float a valve when the camshaft is opening the valves faster than the springs can close them. How are you going to say that you're floating valves between a certain rpm(lets say 5000-6000), and not at a higher rpm(i.e 9000)? That dip is due to something else.
On the other hand... did your tuner feed you some bullshit to convince you? or is he actually misinformed?