il do this again no nitrous .no internal work none.i ran 15.25x38.s.ill leave you all to figure the rpm.s but yes over 7000.there is no cheating according to there rules .but my rules are that i run how i say and thats a full weight boat .50 gals of fuel.2 people .the lies made up are are just that.if i had any of that i would say it.i went to have a good time and its turned into a whole lot of redic.