Injector question

[SkyHawk]

I know this topic was brought up before and I read all the posts. I bought GTP injectors installed them and from what the other posts say it should fit fine. They are the exact size as the stock when you sit them up on edge but when you everything is installed it looks as the injectors aren't fully in the manifold bore. They look sealed but you can see the o-ring. The only difference in the injectors that I can find is the o-ring on the GTP is a little bit higher up on the injector on the manifold side. I know some people had to shorten the fuel rail but that was for 2000+ from what the other posts say. Any opinions?