I know a guy who's looking to get rid of a Sirio STI. It's brand new, never used. I called him and left a message on his phone to pm you about it. Awesome engine. One thing I've found this year is the new Gen 2 Byrons fuel is junk. There have been too many people that have had engine trouble from while using this fuel. Don't buy it. Odonnel or Nitrotane is great fuel. 30% of course. Run a JP3 Jammin Pipe. This pipe works on any engine with great power on both bottom and top end.