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Re: 4.3L Vortec Manifold Gasket Replace/Spider Upgrade
Update. Got the first good miles per gallon calculations since the repairs. Pixie is pulling 19.7mpg combined city/hwy. That's up a bit more than 1.5 full mile per gallon over where she was regularly performing prior to the repairs.
Looks to me like the benefits of mpfi and throttle body mod are very much worth doing on a higher mileage Vortec.
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No fancy sayings here.
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