After an afternoon of tubing, I suddenly could only get 3000 RPMs with WOT. It wouldn't plane, but it ran. I noticed the fuel gauge was low. As I was porposing back to the docks, the gauge went empty and I ran out of gas. Got a tow back. I topped of the tank on the way home and put the muffs on and fired her up. I temporally put it up past 3000 with no problem (in neutral of course). It has new plugs and new igniter2 ignition, My question is, can being low on fuel cause a reduction in speed? Could it be something else?