Holley 6709 double pumper 750 carb info

So I'm trying to find out information on this special 6709 carb holley made. I have actually have two of them! And I would like to incorporate these bad boys into my build.. I am a young guy but I'm cleaver enough to have some careful fun! And constructive criticism welcom as long as I don't half to read through 100 pages of bickering haha but that beaing said this place is my mopar Bible and I wouldn't even have bought this car if it wasn't for this place! Thank you everybody ! I guess this makes me a long time listener first time caller haha..

So I own a cleanish.. at least 97 % rust free all Alaskan 71 dodge demon! I'm building a 451 low deck stroker! I've got a 73 400 lodeck block, 440 sorce heads and the 10 degree lockers with there unbalanced stroker kit, a weiand dual quad tunnel ram I also have an 8 3/4 rear with a 18 spline 4 speed and sub frame connectors. I have not chosen a cam yet but I was aiming towards the solid or solid roller .528 ish lift cam.
I do have 1 3/4 tti shorty headers.. because I love the power steering.. but I just thought I would through the combo out there I wanna be able to race for sure! But I Olney plan to drive it on sunny, well not raining days due to the amassingness sticking out of the hood and alaska summers kinda suck some years... but I'm would like to see if these 6709 holley carbs are usable for my build! Thanks!

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Nothing to do with your question, but just a friendly tip. In my lifetime, I've had to cut two things off another person. One was a ring and one was a watch. Both because said person grounded themselves to the positive post of the battery while working on a car. The ring was in high school auto shop. It cooked his finger to the bone. I had to cut his class ring off with a pair of dykes, because the skin around it was swollen all up and it would not slide off. Very painful. The watch did the same thing but on the guy's wrist. It was worse in that was stuck badly to his wrist. We wanted to leave it for the paramedics, but he was insistent we cut it off, so we did. It took a LOT of skin with it. So word to the wise. REMOVE metal play pretties around cars......or cease wearing them at all.