I recently bought a 2005 Elise from a gentleman in Denver. The car has an aftermarket turbo set up which I had inspected by Ferrari of Denver. I am told that it is a Webb Motorsports set up. I actually flew out and drove it back here to PA. The car runs great and didn't give me any fits other than the coolant hose connecting to the turbo. But now that I'm back I noticed that when I really wind it out and I get around 6.5-7k RPM's the engine starts to miss a good bit. I'm hoping this is a tuning issue. I haven't had it dyno'd and tuned yet. But I was wondering if the lower altitude could play a role perhaps? Looking for a little insight to this issue. Love the car and just want to get all the kinks out. Thanks.