Intake manifold choices

Oldmanmopar said
You do not need to use AN fittings and braided line. I had to because of what was already on my car. You just need a return regulator and barbed fittings. Then a rubber hose back to the tank. Did many cars that way.

Understood. The AN fittings and expense comment had to do with getting the loop/return as close to an actual flow through as possible, by putting the regulator 'after' the secondary bowl feed, to make the LEAST out of a dead head situation.

Mr. Rat Bastid said
..look at both...

Still pleading ignorance with the 'look at' statement. 'Looking at' the Holley and Mallory regulators I see they are not the same, but do NOT 'see' how that makes the latter gooder than than the former. I would suppose a $200 regulator to be 'better' than a <$100 regulator and could also suppose that 'better' to mean it is faster and more consistent...but I don't know why. The less expensive is likely not a real regulator at all, but simply a restrictive device.