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holley throttlebody

Discussion in 'Performance & Fuel' started by leprachaun, Jul 22, 2009.

  1. leprachaun

    leprachaun New Member

    HI all, fairly new to the forum here, was just wondering if anyone on here with an older TBI 305 or 350 (5.0 or 5.7) is running an after market holley performacne throttle body, im thinking about putting one on my truck, just in serch of a bit more power and wondering if it was worth it, ive already got an exhaust and custom intake setup, if anyine could let me know it would be appreciated :)
  2. grimreapersshadow

    grimreapersshadow Rockstar 100 Posts

    yeah you would benefit a lot more from it now that you have an more open intake/exhaust
  3. heavy chevy

    heavy chevy Epic Member 5+ Years 500 Posts ROTM Winner

    yes yes yes you would feel the difference by the seat of your pants. I prefer edelbrock but holly is good also
  4. Mean_Green_95

    Mean_Green_95 Epic Member 5+ Years 1000 Posts

    On that motor you would really benefit from adding a throttle body spacer as well...
  5. leprachaun

    leprachaun New Member

    lol was planning on adding the spacer anyways, lol yeah the 305 raelly does lack alot of bottom end power, im so used to driving diesels, ive just come to expect it lol
  6. Mean_Green_95

    Mean_Green_95 Epic Member 5+ Years 1000 Posts

    lol, my 95 has the 305, but the 5-speed behind it, so I never notice the low end problem. I always noticed the top end lacking tho. My 2000 Sierra is awesome tho. Lots of low end and top end.
  7. leprachaun

    leprachaun New Member

    lol yeah the ls series of engine are awesomemlol, jsut another quick question if i do put this throttlebody on, would it be in my best interest to adjust my ignition timing??
  8. Mean_Green_95

    Mean_Green_95 Epic Member 5+ Years 1000 Posts

    I cant answer that one my friend...

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