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Which Fuel injection system???

  • TBI

    Votes: 13 68.4%
  • CMFI

    Votes: 3 15.8%
  • MFI

    Votes: 3 15.8%
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1,151 Posts
I am running a 95 4.3 with the CFMI system. I am running it because I got the engine with 20k miles on it for $300. It is not the engine I would recommend. It has plenty of power etc. but the injection system in that engine was only run that one year. I would recommend a 96+ system. They have more horsepower, a better fuel injection system and there are several companies that are now making wiring harnesses / computers for it. There were none at the time I put my 4.3l in. The TBI model is simpler but produces about 30hp less and is less fuel efficient on top.

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