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| F Series Forum covers questions and discussions regarding Ford F-150, Ford F-250, Ford F-350, Ford F-450, Ford F-550, Ford F-650, and Ford F-750. |
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Poor throttle performance
I have a 2004 F150 5.4L supercab. I have added a hypertech lll, put magnaflow exhaust, . and throttlebody spacer, but when I push on the accelerator, there is no performance. It does good 60 - 70 mph, but does nothing at low speeds. Do you think if I changed out the throttlebody it would help?
What brand of throttlebody would you recommend? I sure could use some help. Thanks
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