Edelbrock 1413 on a 340?

Is anyone using the Edelbrock 1413 800 cfm carb on a 340? Looking for some feedback, good or bad.

I have done some research and have heard more than once that it is an improvement over the original carter AVS. I have the original AVS 4612 on my 69 340, hiflo exhaust manifolds, Mopar performance cam .450 intake .455 ex lift, 268/272 duration.

It runs pretty well, but I am considering making a change. I know 800 CFM is mathmatically too big for a 340, but would like to know if anyone has had positive results with this.