64 Dart GT (273) Vert--Let the Bolt-ons Begin!

Welcome to the early A group Rhetor. Sounds like you're excited about your Dart and for good reason. It looks like a great car. Some parts are a bit hard to find but that's the fun of it right? Just like stopping your car with 4 wheel drum brakes. Sometimes a little dicey but part of the excitement. LOL You will be pleased with the performance of a 4 barrel and intake. The Offy looks like a good intake (although expensive)http://www.summitracing.com/parts/OFY-5613/ and a 600 Edelbrock carb would be a good combo. You could hold out for a LD4 and they do pop up for sale every now and then.
Most cam manufacturers have mild cams for the small block and you can use a hydraulic or solid cam with your adjustable rocker arms but you will probably need different pushrods depending on which combo you go with. I got a Isky E-4 cam for mine which is a bit more than the stock HP-273 cam specs. I haven't heard it run yet but I'm getting closer. Keep us posted on your progress.

toolmanmike