Need ur help guys, does any1 no if xr2i plug leads are different from fiesta turbo leads?

The reason I ask is I've recently done an efi conversion using Ofab on my s2 van and I've had no joy getting hur started, I've got a spark but it's really weak and quite irregular, couple of people have asked if it is fiesta turbo leads that's on it as they think theres a difference in them compared to 2i ones,...

Can any1 shed sum light on this?
Alan