If you want to be nostalgic. The old Edelbrock LD4B is a dandy intake. Kind of hard to find and not cheap for a nice one. Weiland makes one that works well with the smaller 318 ports as well. The LD4B works with factory air to if that's needed. I don't know about the Weiand though. Good used 600 Edelbrock carbs can be had for a hundred $$ or so and work well. The electric choke is a nice plus.
