So I bought a 2000 911 convertible off a friend. It did great at a track night then a month later decided to lock up on me. I have not torn into the engine yet as I'm weighing out many options here. Hoping to get some names of engine builders that know this motor well and or other options like LS swaps or supercharger add to a motor when I find one? Many options to consider. The 300 hp wasnt enough for me I need more. Something like 450 would be nice. Let me know your thoughts.