for those of you looking for that extra kick in the pants to whoop your buddies quad with,we are developing a 460 kit for the 400's.
we are currently doing dyno testing right now and we are hoping to achieve 50 hp.
i can't say much about the kits on here or give prices,the moderators are pretty picky about what people say on here.i'm just trying to let you 400 owners know that there is an alternative to the 440 stroker setup that is so expensive.
i won't answer to many questions on here about it,but you can call John at B and B Racing and get the low down on the setup. 815-389-4945