are-ex

hey guys, atm my cars running a safe 240 hp on 7psi its a series 4 mild port with microtech mt8, i want to push that to 400hp, i just received my 2lt surge tank today, i currently have a 225l/hr (500hp) walbro in take fuel pump and other then that i believe the rest of my fuel system is stock, my tuner tried to turn my boost up but the fuel leaned out, so i was wondering what size injectors i should get? if i should get a fuel pressure regulator? and the external fuel pump i should get? and also how to set it up
thanks guys

are-ex

????????

nycgps

iTrader: (4)

This question has been answered like 50 million times.

and your tuner should know what size of injectors you need.