would an A carb on a B manifold have less power than A on A?

[philosofriend]

Would an A carb on a B manifold have less power than an A carb on an A manifold?

I have to take my old manifold off and I'm thinking about getting a B carb. I want to put it back together (with a new Burtz block) but I won't have a B carb for a while. Seems like I might as well use Snyders manifold that is bored out for a B carb now and save having to change the manifold later.

The B manifold won't make the A carb run rough or anything, will it?