I can run WOT up to 90 MPH but once I get to 90 MPH feels like I have a govenor. Feels like the belt blows, so I let of the gas, give it WOT to get back up to 90 MPH and can't go beyond as it just falls on its face. If I keep on the gas after reaching 90 MPH sled will fall on its face and slow right down as if you blow a belt. Thought it was clutching, so replaced all components with stock, and still does it. Is there a rev limiter?