Sorry guys, stock scoot. Not sure if the original owner had it jetted. He did have it derestricted...... The biggest dead spot of the last 1/4 of the throttle above 8,000rpm. I actually have to let off the throttle a little to maintain 48-50mph. I was thinking it was too much air(leaning out) at that rpm... and the stock jetting cant supply enough gas. Lemme know what you think.