tuned to a extent i guess! its bit rich but better safe than sorry!

Its NOT the boost control thats an issue !! Its the std ecu / MAP CANNOT read boost so your tune is all wrong.. Its set up for N/A where motor advances as engine revs.. With turbo or blown motor it MUST retard as boost rises.. If no ecu upgrade?? Then atleast use an MSD timing controler where it retards as boost rises...
Some bodgy ways around EEC advancing is to disconnect SPOUT wire and lock timing at 12 to 16* but makes it hard on starter motor starting engine..
ECU's are so cheap these days .. In Sydney check out Adam at http://www.justenginemanagement.com/

Check Ebay for injectors... You really need 42's and Walbro 255 intank pump.. I bought 8... 96 Lb injectors for approx $680.
High impedance 42's would be cheaper...
The pump shouldn't be much over $150....