no i mean it was build to have power to 6200...but i cant really get it past 5000. ive been told its under carbed to reach 6200 rpm. its a fairly new engine, built by the local performance shop to make somewhere around 400 hp. ive also been getting detonation above 5000 rpm, or i did, i didnt try taking it above 5000 when i noticed it was struggling around 4800.