[66temp]

I am new to the Pontiac world. I was lucky enough to come across a 66 tempest w/ a 326 2bbl with a powerglide? 2 speed. I had the engine tuned and wet/dry compression done. Mechanic says it a solid motor. now to the question.
I need more power. I realize the 326 is not the best motor to build. But since it doesn't need a rebuild I would like add. I was thinking 4bbl, headers, and dual exhaust. I also have a msd5 in the garage. I need to do these mod little at a time. What should I do and in what order. and with the carb should I use stock intake from another car or buy edelbrock or something.

Thank you in advance.