mine is on jenveys and 708's i was told i would make 155bhp and i did which is right for my set up the highest ive seen is 167bhp with atspeed bodies and ph3's, id always go for jenveys, atspeed/gmc etc bodies over bike bodies, you can usually find some cheap i think there is some in the forsale section for about £600 or if your very lucky like me you can pick up bargains i got my jenveys for £360, they cost over £1300 brand new