Hi Greg, the S & S X-wedge owners manual quotes the following:
During the break-in period the ECU will automatically limit engine RPM in 2 stages during the first 20 hours of engine operation. During the first 2 hours of operation the engine rev limiter is 4250 RPM. From 2 hours to 20 hours of engine operation the rev limit is 5125 RPM. After 20 hours the rev limit is set at the engines maximum RPM of 5800 RPM.
