This is an interesting thread,my project bike uses a 955 engine to.
The spec of the engine is as follows,if i remember correctly
Brand new 748 last spec cases
916SP crank
Titanium rods
Omega race pistons
748R heads,flowed
Now as for the cams i cant remember if they are 748 or 996 SPS cams.
All engine internals were lightened and balanced,and everything blueprinted.
I am using a 996RS rad,996RS 7 row oil cooler and a EVO2 exhaust system.
The throttle boddies are from a 996,but not the P8 ecu,i am going to bore them to 54mm as i am using a factory large airbox and to make use of the large valave sizes of the 748R heads.
I had thought about using the injector system of a 748R,but i allready had the 996 unit so will give it a try first,however it will be interesting to see what the result is with this thread,i think it will be finished way before my bike.