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I have a 94 vette that i have replaced just about everything i can think of. Opti spark, plugs, wires, o2 sensors, IAC, TPS, fuel pressure regulator, you name it. It runs great when its below 210 degrees but if it gets hot or the AC is on it dogs like hell at low speeds and takeoff. like its not getting enough air or something. any help is appreciated.
When it gets hot it gets sluggish when i accelerate. at idle and highway speed its fine its just when the rpms drop as the automatic shifts gears. feels like its starving for air or something.