This is the edelbrock running with rumble mufflers.
https://youtu.be/7umnODe8nqQ
To get the edelbrock 1406 as responsive as the Q-Jet had to run the largest primary jet and thinnest metering rod in the tuning set. .101 jet and a .070 x .037 rod with the 8 in/hg step up spring. At 2,000 rpm the quadrajets small primaries and triple boosters already have the main metering flowing well. By comparison the Edelbrock is just starting to drizzle fuel from the boosters. The quadrajet has a very nice fanned out spray of metered atomized fuel flowing and the Edelbrock has big fat droplets of fuel pouring down on the throttle plates.
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