I'm after a set of injector for the Duratec in the stock position.

I'm not really sure if the stock injector are good for 180bhp, everybody seems to be using very big injectors (>300cc).

Is there any other car with a bigger injector that fit with no modifcation (also same connector)

Thanks!

I'm using ST170 injectors which give 197bhp.

I have some stock Duratec injectors spare that I could sell you if you want them.

Duratec injectors are part no 0280 156 009 I think, Bosch, top feed, high impedance, 191.8cc/min.
I don't know what cars you have available in your local breakers but you could use the StanWeiss Tables to identify flow rates of injectors. Print the Bosch part of the table out and take to your local breakers and hunt through their stuff. Any Bosch top feed high impedance injectors will fit. Just find some that flow 250cc/min roughly.
I think the standard injectors will just about be OK for 180 bhp but not much more and they will be over the 80% duty cycle to do it at 3 bar. Not ideal but do-able.