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Hi All, I'm a newbie to this forum. Thanks for taking my question! My Suburban is a 93 K2500, 454, TBI, auto, 116K miles. New plugs, cap, rotor, wires, fuel filter, stock exhaust. Since I have owned it (about two years), it runs and starts fine, and is smooth. However, when "getting into" the throttle, it actually accelerates quicker if you only use abot half throttle (!). If you open the throttle up all the way, it feels like there is some sort of slight restriction; smooth running, but like something is holding it back. If you open the throttle gradually, you can feel a noticable drop in "pull" as you go past about half-throttle. I have never driven another TBI big-block; Are they all like that, or do I have a problem. Plus, for such a large motor, the truck seems a bit underpowered;again, are they all like that? Any suggestions are welcome.:neutral:
