[rotrex]

IMHO they can help you.
I would suggest direct port injection.
4 nozzles right before the fuel injectors in the straight section of the plenum on the top side.
Flow level rule of thumb 1.5ml/min per HP.
If those 2150cc injectors is total flow over all 4, then you are likely in the 350 to 450 HP region. So jet wise you could start with 4x 0.4mm C jets or go right to 4x 0.5mm jets.
You need to be able to fully remap the WOT mapping to take full advantage of water methanol injection. Use a 50:50 mix per weight, so about 1l liter of methanol mixed with 0.8l of distilled water.
If your injectors are 2150cc/min each, you need to talk to specialists anyhow.