What all do i need to take to machine shop?

I start with the block only, including main caps. During dissassembly it is best to check how free the crank turns. Then use one piston rod assembly and install that same piston and rod into the 4 corner cylinders to get measurements on the block to see if the decks are equal and straight front to back. Have the machine shop bore to the minimum diameter cylinders will clean up. Now you can choose pistons. If all is well, the next step is the rotating assy. crank, rods and your new pistons. Since you are starting with a 67 two barrel engine, there is likely very little stress on the components. The crank should be forged steel and will probably just need polishing. Put new rod bolts in the rods, and balance the whole works. I like 906 heads, just clean up the bowls and run new stainless exhaust valves. Use the fel-pro viton valve stem seals. Pick a cam. I'd use the factory A Body manifolds first. You can get off the shelf exhaust. I've run an original 383 Formula S Barracuda for years with a 727. Easy and plenty of power and torque. A 727 is easy to get up and running. Replace all the seals, up the pressure, get a 4.2 kickdown lever, adjust the bands, change filter, fluid, and forget about it. Run 3.23 gears.