This is getting way out of hand. You cannot just keep posting topics asking people to do stuff. Why not try it yourself for once, and not patiently wait for it to happen. There is a wide range of tutorials teaching you how to work with a lot of aspects of the .JAM archive. And also (assuming that you've seen the Dark Forest Dash speed mod), speed editing of AI's is in early/experimenting stages. It currently is not a five minute job to mod all opponents on a single track, and I think it'd be better to modify more on the track Creator had already done, to look at those results and try to improve more until we get a good insight in how to speed edit opponents even better. Then, we could expand the speed editing to other tracks (though this is my opinion on this subject).
And lastly, please specify more in your topic post next time. It may improve your reputation here on RRU, and helps others know what you're up to, how you want something to be done or what you are trying to say (I know it's clear now, you want the speed mod, but it's about the principle).