If I can\'t fix it I\'m going to shoot it. I'm having a problem that has me stumped, The more throttle I apply to the engine the worse it bogs down, I have more power at half throttle than full. Also when I start it in the mornings it runs great, high idle works fine its just when i actually apply the gas it sputters coughs spits and complains. it does this warm engine or cold. I think its in the carb, what do you guys think. 86 Jimmy 305 quadrajet, 700r4. I have replaced cap, rotor, plugs, wires, fuel filter, air cleaner, pcv valve, two cans of carb cleaner, stp fuel system cleaner,high octane 90, wished, prayed, and waxed it because I thought it might be mad at me. Please help, what am I overlooking. When the mud gets deep and the hills get steep we'll find out who bought the parts that were cheap.