Splitter is in the works. He asked some F body guy about the speed thing, this guy runs the same car we have w/ a 10" spoiler, he said while it does slow him a little he dropped 6 seconds a lap. Now when we do Daytona (next year I hope) we'll run a completely different spoiler and probably do some engine work. Right now we figure our mad ass 305 is pushing 230hp.