I finished the comments as promised
- regarding Silver's comment: Will-O-Wisp on Houndoom is legit. Its Defense is terrible, so that helps a lot.
- regarding Houndoom: Also, you're gonna want Ground instead of Ice for Hidden Power. You have plenty of ways for your other Pokemon to take out Dragonite, Gliscor and that gang; thus you want to focus on taking out things like Heatran, the odd Empoleon, I guess Blaziken as well since you'll outspeed the bastard at first, and a few others that I probably haven't thought of mentioning. You don't wanna get walled by Heatran, and the Air Balloon varieties are outsped and grounded with a strong Dark Pulse - there, problem solved, as Heatran can't do too much to you in return. Don't worry about Gliscor - pass the Special Attack to Houndoom, and it OHKO's most Gliscor with Flamethrower in sand. The switch in HP type brings the number of things that can wall you from 6 or 7 down to one (Dragonite, and the rest of your team easily takes it out). Gyarados is no more or less a problem through this change.
- regarding Nidoking: Drill Run's high crit-hit is not turned into more power by Sheer Force - thus, you're better off using either Earthquake for that physical aspect, or Earth Power, which does have something for Sheer Force to work with.
- regarding Salamence: Thinking it should go mixed, perhaps with Flamethrower or Hydro Pump in the place of Crunch.
- regarding Slowbro: Your team is fairly specially focused, so it isn't too bad an idea to swap Psychic for Psyshock on Slowbro.
8.5/10 is my rate.