All good advice! The only thing I may add is tank venting. 67's & 68's vent through the gas cap, so make sure you have a vented cap. Also if you replace your lines, try and go with stock ones, I just resolved a problem due to some bad advice from a shop that offered to 'custom bend' me a set, and I ended up with too many radical bends and a few flat spots.
1967 Firebird Convertible 1980 Firebird Formula Turbo