me and my dad put his thru the 440 treatment and got 40.4 horse on the dyno. all it has is a wiseco 440 kit, stage one hotcam, porting, yoshi full exhuast and a keihin 39mm fcr carb. not bad for a home port-job. in the next couple of weeks mine goin down for a 426 that we are gonna build a little hotter, hopefully ill be puttin out about 42 once we get the carb and a better cam in it.