55lb Injectors are good for around 450bhp or alittle more, maybe you could think of Siemens 72, or 83lb Injectors..

Head Gasket too may ned to be changed for a WRC TYPE one, Mountune, 205 Block again should be ok, i ran 450bhp with 2.3bar on a 205 Block and it was ok.

As for a Chip, speak to MSD...you,ll need one for change of Turbo, injectors...