Finally got a new carburetor

I really hope is picks up something. I have a friend that I race with that went to a 950 on his small block Valiant and it ran the same as his 750 Demon (6.60's in the 1/8)....so I've been a little gun shy of pulling the trigger on the bigger carb, even though I'm pretty sure my car will like it.

For Fklskv, is it on my 408 (13:1, ported eddys, 264/268 cam w/ ~0.620 lift, Victor intake)