My Roush 8 stack injection system has started leaking at the end of the fuel rail. It's dripping right onto the distributor. I was lucky I noticed it before heading out on my first drive of the season. I'm assuming there's a bad o-ring at the end fitting. Before I start pulling things apart I thought I'd ask if anyone has experience with this setup and can tell me what I'll find in there. I can't seem to locate any diagrams anywhere. Thanks.