you could get a dual pattern carb spacer and then you could use both spread bore ( quadrajet ) and square bore ( Holley ) carbs interchangeably.
your car has a 750cfm Quad on it, 1972+ 455 big blocks had 800cfm quads. that's still factory though and doesn't really answer your question.
The way to crush the bourgeoisie is to grind them between the millstones of taxation and inflation.
Vladimir Lenin
Government schooling is about "the perfect organization of the hive."
H.H. Goddard, Human Efficiency (1920)
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