1992 Ford f-150 302 efi misfire on cyl. 1 and 2?

1992 Ford f-150 302 efi misfire on cyl. 1 and 2? - 1
Added (1). has no power under load, often dies at idle, surges under low rpm at low speeds (15-40 mph), seems to have full power when floored unless like i said under load. Replaced plugs, wires and distributor cap, the problem persists.

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