When I first started running the blow thru Procharger deal I started with duel HP950's on this very manifoldhttp://www.yellowbullet.com/forum/showthread.php?t=246908
(I think I messed up the link, it's at 5/22/2019 "AIS water/meth pictures")
But that was before the dominator was technically available and was still trying to make it work. The duels on gas might offer a slight tunning advantage but probably not measureable. The current dominator from CSU (probably C&S also) will make as much power as your wallet will stand on gas.
Now, I have not tried it......yet, but I truely believe the current state of development is there to run duel carbs on alcohol and they would be able to flow enough fuel to put you in the low 2000's hp area. The last fuel tweaks that Kevin did to my dominator that thing will now flow so much fuel that I had to pull the jetting way back to bring me in line with fuel demands. That's what makes me think the duel alcohol carb time is now here.
Blessings..........Ron.