I had a customer call me today and wants me to put a LS9 into his GN and I have no idea what would be involved. He wants to keep the a/c and dry sump and go with a 6 speed. Possibly keep the carbon brakes. Are there any companies that make an installation kit? Mounts, headers, clutch pedal, etc. What about engine management? I'll assume we'll need to change the rear tyo something stronger. I have not seen what the GN looks like. How big of a can of worms am I opening if I take on this job?