I ran them with a stock 383 HP convertor, 3.23 gears and a mild cam with Six Pack slugs and ported, stock valve 906's (very close to a stock 70 440 magnum). I left the middle carb stock, I jetted the outboards down to whatever a 700 double pumper jetting was (I think I had to drop 5 jet sizes). You could kick that thing at 20 MPH and it would respond right now and break the tires loose with no bog whatsoever.
I have a new set of vacuum carbs on my 71 Road Runner right now and although it works pretty well it still is not as crisp as that mechanical setup was.

Sheldon