
04-01-2011, 04:08 PM
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Senior Club Cobra Member
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Join Date: Jul 2001
Location: Carrollton,
TX
Cobra Make, Engine: JBL now SOLD
Posts: 1,735
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Not Ranked
To really get any of the potential gas mileage benefit of EFI, I think it takes an EFI-friendly cam with like a 114 lsa that pulls decent idle vacuum. Running a lumpy cam and then tuning the EFI to compensate for and perform well results in no better gas mileage than a carb. Thats what my own experience is anyway. If the EFI controls the timing you can gain a mile or two in MPG improvement there with some tuning.
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6th generation Texan....
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