[Richard L]

Simply put, nozzle at the runners are the most ideal for supplementing fuel, not so much induction cooling.

When the nozzle/nozzles are far away from the inlet manifold, there is a higher probability of uneven distribution to each cylinder. In order to minimise this effect, place it as far away from the throttle as possible. Extra evaporating time will yield smaller droplets (natural process of evaporation), resulting better cylinder distribution.

As far as the AFR is concerned it make little difference overall but you will get lean lambda readings due to some cylinders receiving less methanol. It doesn't mean the methanol is loosing combustion heat energy (btu). Don't get confused with latent heat energy (KJ/kg).