Why did you buy so small injectors when you are going to use E85 ?
630cc will only work for about 500 -550 crank hp on E85 and 3bar fuel pressure.
I have driven on 1000cc EV14 with E85 with RS6 ECU and air mass meter and it worked great with correct tune and 600hp+
but now I have changed to 1500cc but then without air mass meter and instead MaxxEcu Pro that controls everything.