The last time I was at Reher Morrison I asked what the status was on the Spirit of Rett. They told me that he had a different shop building a blown motor for a future attempt. It should be fun to watch. I guess I have to wonder why someone would want to complicate the package when you have a proven method with big Chevy motors and nitrous. If a 532" isn't enough go 632", 762", 872", or their new 959" motor.