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06-23-2014, 12:03 AM
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Registered User
Join Date: Jun 2014
Location: Alamosa Colorado
Posts: 10
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98 gmc carb swap
I have a 98 Sierra 4.3 with a 96 5.7 I dropped in I am getting 8 or 9 mpg. It also has less power than the 4.3. The wiring is wrong the computer is wrong it shifts hard the o2s don't work. The mass air flow don't work the egr is no good. That's why I want to do a carb swap. I have everything I need I just need help with wiring. And the fuel pump. The simpler the better I was thinking turbo 350 trans.
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