What kinda of injector do I need to buy?

Ok so I have a b18c1 in my 98 Honda civic skunk2 manifold. The head is from a first gen 93 gsr. So I took it to my mechanic because it was misfiring, and now he's saying the b18c1 injectors that he ordered is not fitting, so what injectors I'm I going to need?

If your mechanic can't figure it out, what makes you think we can?

Thumbs to Ron, but to add support, have you considered a different mechanic, or bet yet, a tuner shop?