Holley 750 CFM Ultra Double Pumper or Quick Fuel Technology SS-750-AN 750 CFM Street?

[RedHawk]

....or other carb hell I don't care. This is all I can find that makes some sense to me.

Full disclosureI know only enough to be super dangerous.)
What Carb to go with. Don't care about gas mileage just want to get all I can out of this engine before it explodes and I get a BBF FE.

I have a 351w with Performer RPM heads #6025.
410 gears
I am in Colorado at a starving 5000 ft.
Recently ran Banidimere and wothout power shifting ran a 13.7 qtr mile,
I also run the car on road courses too so not just a drag car in fact more of a track car and street.
170cc
Intake valve 2.02"
exahust 1.6"
Edledbrock spec sheet says to use a 750cfm carb.
cam is a #7182 rpm range 1500-6500 and very lopey.
1:6:1 roller rocker arms
duration .004 lift 290 and 30
lift cam intake .310 and .325
Monkey garage idiots took off edlebrock 750cfm carb and put an avenger 570cfm carb on it and it runs like dog sh%t. stumbles at WOT at around 5000 rpms.

I recently hacked off the 1" inlet glasspacks and replaced with jones exhaust 3 1/2 inlets and the exhaust sounds and feels beautiful but problem is when secondary's kick in the car pulls nicely and then sputters at 5000 rpms.

I know there are a hand full of things to do but I figured with edlebrock specifying the 750cfm carb and the newly free flowing exhaust I should increase the cfm on the carb.

Thoughts?