While dual quads have great looks, I reckon two carbs are 2 X trouble,
how many threads do we get here on not being able to set one carb up to run ?
If there are drawbacks with this setup on a smallblock, pretty sure itīs the same for a big block.
Go for a tunnel ram intake, two carbs, power,intake manifold design issues
solved, low mpg.
Edit: Just found this