What engine are you building? Zetec or CVH?

I would say you'd be ok getting a set from a similarly sized normally aspirated engine, so if your building a 1600 CVH the a set from a 1600/1800 Zetec would be ok, but if i'm wrong then someone else will be along to correct me

What management are you using, as you might be better off using the injectors that your choice of management used?