To answer questions regarding cam indexing. GCR clearly states in the rules, you can re-key or index cam shaft to compensate for milling head, its legal.

Second ECU. Im not sure what you mean by Motec, are you saying replace the ECU. According to GCR rules you cant replace the computer only alter it. I went through this with my 944, I didnt just go buy an off the shelf chip. I went to a custom chip maker, Milledge referred me to the guy. Let me say we spent hours on the dyno, interfaced with electronics measuring everything. Made 5 or 6 chips, I got 5 lousy HP. Trust me when I say, there is nothing to be gained here.

I really love these cars, and would/will build another one given the chance. I'm a walking manual when it comes to these cars, and know what they are capable of and not. Jon Millege Engineering in my opinion is the national expert, every one else either cheats or lies, and when he states gross hp one believe it.