fuel injectors for 99- 5.7

Discussion in 'Performance & Fuel' started by gangbox1, Mar 9, 2011.

  1. gangbox1

    gangbox1 New Member

    hello group, my motor jerks at cruise speed down the freeway. the truck sits most of the time. im thinking its the spider injectors. i heard there is a "upgrade" for these type injectors. is the upgrade really that much better? any input appreciated. thxs

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