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performance mods

Discussion in 'The Garage' started by Bhintz, Jun 8, 2003.

  1. Bhintz

    Bhintz 1/2 ton status

    Joined:
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    Location:
    Roswell, Ga
    For a TBI engine which is a better performance mod. and new trottle body from holley or a edelbrock performer intake, cant do both b/c the manifold wont except bigger trottle bodies. how much gain will I see in hp and mpg.
    and is anybody w/ a TBI running Jacobs or MSD ignitions? do you notice a difference in hp or mpg.
     
  2. Jonny-K5

    Jonny-K5 1/2 ton status

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    I've got the holley on my truck, didnt notice much of a difference, maybe a few hp. ive been told that the restricting parts on these engines are the heads, not the tbi. i've been itching to put a vortec swap on mine, but waiting till the shortblock needs rebuilt. you need a vortec compatible intake for the swap tho. GM parts catalog has one for the tbi 350.
     

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