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11-17-2016, 09:25 PM | #14 |
1965 Chevy C10, 2005 4.8L/4l60
Join Date: Aug 2004
Location: DFW Texas
Posts: 8,545
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Re: '99 4.3 vortex swap '84 c10
I had an 85 with the 4.3/700 combo and usually only got 16-17 mpg. I currently have a 4.8/4l60e and consistently get 19mpg. Just food for thought.
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