I'm sitting on a blown '06 CS motor. The car is en route to Bodymotion in NJ now. Chose them after discussions with most of the reputable builders in the country. Very interested in your Vision engine, though. I assume it's the replacement engine you reference in your posts on Rennlist and Planet-9. What's prompted you to move to DFI after investing that much in the 4.0 ? What else can you tell me about the engine? Any issues at all?