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Old 06-20-2011, 07:07 PM
GreasyJack GreasyJack is offline
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Join Date: Feb 2008
That 454 is a big engine! From what I understand 10 MPG is pretty much standard for the fuel-injected big blocks, but that's when they're in empty pickups! With all the however many tons of RV goodies (and that 2-ton Liberty), I would agree with the others that 7.5 MPG is quite good.
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