I’m hoping to get some advice on upgrading the throttle body on my 350 TBI engine. A little background: I’ve been driving my '95 Chevy C1500 for a few years now, and it’s been a solid truck. Recently, I’ve been thinking about doing some upgrades to get a bit more performance out of it. I once upgraded the exhaust system, which made a noticeable difference, but now I’m curious about the throttle body. Has anyone here done a throttle body upgrade on a 350 TBI? What kind of improvements did you see in terms of performance or fuel efficiency? Also, are there any specific brands or models you would recommend? I’m not looking to turn it into a race truck, just want to enhance its everyday driving capabilities.
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Search for a used RP or R. After the holidays, there should be many available for under $1,000. Both will much exceed what you currently have.
I’ve upgraded the throttle body on my own truck, so I can share some insights. When I worked on my 350 TBI engine, I found that upgrading to a larger throttle body did provide a noticeable boost in performance, especially in terms of throttle response and overall power. It also had a slight positive effect on fuel efficiency, though that can vary depending on how the engine is tuned. For brands, I’d recommend looking into Edelbrock or Holley, as they have a good reputation for quality and performance enhancements. If you’re not looking for extreme changes, a mild upgrade should offer improved drivability without turning your truck into a race machine.