yeah at stock 7lbs that doesnt sound right.. more like 11lbs or so with those bolt ons. Unless its flywheel HP as others have said.. mine dynoed at 217whp at 11lbs with minor bolt ons and side mount.. plus i had a thicker headgasket but that should matter for too much hp loss.. but now my baby should rip someplace in the mid 300's! FINALLY!
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