Walbros eat more cock than the members in the BAW thread
I personally use a single SARD 280Lt/Hour unit
I run it at 45psi base pressure (no motor running) SARD Type RJ reg
I use a Keene Bell Boost A Pump at 100%
I use ID1000 primaries and ID2000 secondaries
I run everyday 30psi boost
I now run it at 35psi boost pressure
I run RRWEP140 WM50 water injection system
I run Full CDI coil on plug system
The car is a mother fucking rocket ship!!!! 
With 275 Toyo R888 on the back (GG compound) it will destroy the tires in 3rd gear (goes to 100mph in this gear) and does 100-200kmh in high 5 second range.
FYI: Good sports tires wear rating of 180 (v's 100 for race tires) and you are like driving on ICE in the dry with hot rubber....... its fucking insane.