ditch the mf2, stock injectors, and get 2 extra 450's to substitute all 4 of the stock injectors. return any other wiring to original state (iat hacks, map hacks, etc)

obd2a-obd1 conversion harness from www.boomslang.us=apprx $100 shipped?
chipped obd1 ecu from me=$180
tuning from me=$420
roll out=priceless

simple and total control over the ecu fuel, timing, other features totally independent of each other. you could also get hondata s100-boost (apprx $200) or s300 (apprx $600), but the above mentioned i would tune w/ crome-gold and you would be just fine.