You have the option of going for a set of phase 2 440,s! You can send these away to Mark at lateral and get them cleaned and flowed at around 850cc. Yes total overkill for your build but the price is low! Also a decent mapper can control the excess easy. I spoke to JGM about this and witht the Apexi each injector can be trimmed to suit!
It may seem alot of flow but they are future proof, you will however need a set of adaptor cups which can be had for around £30, i will post a link for the cups if you decide to go down this road.
550 injectors circa £350
ph2 440,s £60-80 2nd hand adaptors £30ish cleaned and flowed @ lateral Cica £110+VAT