jstang209 said:
Don't paint them black, use Ford Blue or cast iron color paint. Lots of engine builders paint the engine black and it could raise some suspicions. Only a head case would paint aluminum heads blue, right?
As far as what will flow the most, you might try to find a Holley Systemax I intake or a more common Explorer, but even then, a healthy 331 will be held back by either.
You appear to be taking a kind of "sleeper" approch to your Stang. What I would suggest is to extrude hone the stock upper to the max limits while extrude honeing a Holley SysteMax 1 lower at the same time. This will keep your stock appearing intake. BTW the block and heads should be painted grey not black.