(ah screw it, just buy a set of Panchitos)
^ That. Then put the 1.25s on it, buy a "Black Box" (to you know, "save on shipping") and call it a day. There is zero downside to Panchitos on a 1776.
Next year when you want more, you can start writing checks again for a merged header and some better carbs. The heads won't be the limiter at that point.