Sounds like a pretty good setup so far. As far as the intake, I would recommend an airgap dual plane intake, depending on how much you want to spend, edelbrock makes some nice ones, or if you aren't worried about the "name brand," I put a Summit air gap on my '73 318 with a Holley 650 4150 series, and it's doing great. The setup is geared more towards low-midrange torque, so that's something else you have to consider when doing the upgrades.