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1999 Serria 4.8L

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Can anyone tell me about a 1999 GMC Serria 4.8L Vortec, auto trannie


1. What size the injectors are ?

2. what is the stock HP and torque it was rated ?

3. What does the funny shape of airbridge from MAF to TB do ?

4. Why the injector flow table in the PCM has the same value for all MAP loads which is not normal to other model years ?



JR - Custom GM car/truck Tuning

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