You want power then I would suggest a stroker crank and an ATI procharger.

As for the setup you got going on, are you running higher compression now? If so, a tune for high octane could give you a noticeable bump. I am sure that Allen can do something though. Even something as simple as raising your redline and firming up your shifting will do a LOT for the performance because it will keep your engine from falling out of its power band after shifting.