I'm running a #2701 manifold and a #1406 carb.
Same here, on my 305. Great set-up with improved drivability over stock.
And as TXRed said, you may want to consider if you have emission checks because the 2701 is a non-EGR manifold. If so, the 3701 seems to be the only option to keep your EGR, but you'd need a square-bore adapter for the 1406 carb.
Also, another component worth considering is the Edelbrock 2101 cam kit to go with your set-up...just a suggestion (no, I don't work for Edelbrock).