Nice work. We dynoed an R33 Skyline last weekend with a single Wal-bro and 680 cc injectors that made 621 rwhp @ 1.5 bar with a GT42 on an RB26. It started running lean past 7000 rpm, so you are pretty to what I would consider the limits on a single Wal-bro.  
Again, great numbers and nice work tuning.
Sean
			
			Again, great numbers and nice work tuning.
Sean
 
				
		 
 
		 
 
		 
 
		