Originally Posted by phil_focus

easy to check the throttle mate. get someone to floor the pedal and then see if you can open the buterfly any more by hand. if you can then you just need to adjust your throttle cable a bit. with that done a standard engine should be seeing 165 bhp ish. unadjusted they can be as low as 150-155bhp!

have a search on the net for dream science mate as i dont know where the dealers are but its generally regarded better than bluefin.