Well, the 350 cfm would be a good place. Are you stuck on the supersix intake?
Which comp cam? the 252S or the 264S? I don't remember the lift numbers for those. Thought they were roughly the same.
If your going to bore 0.060" or bigger, the Ford valves will work, otherwise, Engnbldr valves on ebay would be a better choice for a smaller bore.
Make sure you mock the head onto the block with the rotating assembly out to verify the chamber alignment over the bores!
Since your going with boost later, and targeting over 7#, you should be looking at Forged pistons. You can get away with cast if your tune is perfect, but in the real world, give your engine as many chances as you can to live. The pistons need to be designed for boost. If the top ring is too close to the face of the piston, disaster awaits.
10# into 3.55 gears, assuming we're talking an 8-3/4 should knock the tires loose rather handily. Your going to want a locker to pop the rear loose and keep it there once you get spinning. Not sure about the sure-grip working well in that mode. Likely have just enough differential action to keep trying to straighten out due to the weight of the car, and the lack of a Big power plant. At speed, I'm not sure how the bigger car will behave when trying to drift. Subframe connectors should help a lot. Your going to want to stiffen up the suspension. Get tires on there with as little sidewall compliance as possible, otherwise, they are likely to nickname you lurch.
Stock carb should be a Holley 1920. Not entirely sure though. Better question for Dan.
CJ
) with 50 profile tires, width will change because I will be using whatever tires I can find. What do you mean by locker? and the cam is the 264.