If it doesn't already. the LS series of engines will have more aftermarket support than anything in history. For instance, MSD makes a tuneable ignition driver you can use with a carb and manifold. There are also stand-alone kits to operate the engine/trans as produced .
http://www.speartech.com/ These folks do engineering type adapter harnesses. LS2GTO.com ; LS1tech.com are full of more info than anyone can possibly read