Time to add some inexpensive HP

If you're handy at tweeking, the cheapest intake and carb would be to find a Maxi van, per say, and pull the Thermoquad carb and intake off. I've done this from old vans sitting around and paid 20 bucks for intake, 20 bucks for the carb. These perform with the best. If you don't care to mess around, and are not very handy working with carbs, I would suggest the Weiand action plus, with a 600 cfm carb. I have this very set up right now on a 318 (it was a bone stock 318 2bbl with dual exhaust) and it works great.