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While breaking in my new 07 600 motor last night, it seemed great @ all levels of throttle, but a WOT burst was not clean. It sounded/felt like I hit a 'rev limiter' Now the pulls were short and I backed out quickly, is there some timing "black box" that may be in play or should I go after fuel delivery/jetting.
New cyl/pistons/rings/head. Was previously ran at same elevation before the 'intake boot inspired rebuild".
New cyl/pistons/rings/head. Was previously ran at same elevation before the 'intake boot inspired rebuild".