i'd say try megasquirt, but you can blow £350 on a good one, then you've got to sort the loom.
but you learn a new skill and it's not a bad bit of kit once you know what you're doing.
alternatively get a chip, but the standard injectors are no good for big power at all.
i'd be suprised if they can cope with 180bhp.
same with fuel pump, should be ok for 200bhp, but may stuggle after that.