I have nothing directly on point. I did run a 800 cfm Holley spreadbore on the factory manifold on my Charger (4300 lbs, stock converter, 3.23, 915 heads, manifolds, 2 1/4" exhaust, MP 272 0.455" cam) after a fresh stock stroke rebuild and its low end was impressiveness. We took that carb/manifold off my car and put it on my buddies 68 X with a well worn, low compression 440 and it ran great too. Both cars would go sideways in 1st gear, and ran into the 13s at over 100 mph.

If it were me, I would go TQ, and use a regular Performer intake.