Q-Jet Usage on a 340

Anyone out there running a Q-Jet on a 340? I am thinking about trying one in place of the T-Quad. I have a stock iron 71 manifold. Anything out of the ordinary needed to make this work? What CFM are you using and how is the performence? What other aftermarket manifolds are out there that accept a spreadbore other than the Performer which is no improvement over my stock manifold. Any info a help. Thanks.