Um not sure it feels alot faster in the bottom end. Where there was hardly any power down below there sure is now. Alot less need for downshifts also. For what its worth the JR web site has dyno numbers of around 143 whp and 126tq not sure if those are the exact numbers +-5 I would have to go look. pretty much B series hp numbers with more tq. I went this route because I rebuilt my motor a little more than a year ago and didnt want to let go with it. Before anyone says any thing yes a turbo or B series swap both have more potential but it just matters what you are going with the car.