Torpedoes on a Starviper are not optimal, since this ship wants Autothrusters and not Chimps.
Just no Torps. NO!
I just want to disagree with this and all the other people who say no to Torpedoes. I say this primarily due to the Flechette Torpedo. It's 2 pts, rolls 3 red dice, and gives a stress for everyone under 5 hull. I've used this quite a bit on a Xizor build and it was instrumental vs. some lists. There are those ships that you just have to stress at times. It's a good way to get a stress in without wasting your normal shot. They also don't get range bonus on defense. You don't need Guidance Chip because even if you miss, they are stressed.
I run that too in my xi swarm list back in the Day. Recently actually.