engine surge

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    Engine Surging with a Holley Pro-Jection System

    I have an older 2 barrel Holley Pro-Jection System that surges at low rpm's. When the A/C is engaged the problem magnifies. I had a local Hot Rod mechanic take a look. He believes this Holley is not delivering the volume needed for the 455 engine and is recommending to change to a 4 barrel...