Buy the head from treats (and the pipe too, while you're there) and spend the extra on some jets. You'll probably need them with the pipe. The pipe (and upjet) is probably the best single mod you can do. I've heard that the Boss can kill your low end (but it has great top speed), so the high comp head sounds like a good idea. It won't help your top speed much, but it should help your low end. You could also consider adding a high flow air filter if you've got the cash.