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Re: 78 K20 Gas Milage Suggestions
I'd play with the timing as mentioned above, and then I'd get a hand held vacuum gauge and tune for the highest vacuum. Timing is free, assuming you already have a timing light and a vacuum gauge is very inexpensive. I'd do both of those before spending any real money because how long will it take you to recoup whatever larger amounts you spend chasing higher mpg?
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70 C10, shortstep, .30 over 250,Hurst shifted 3 spd parts hauler. Holley 390, Clifford Intake, Header, ported cylinder head, unknown bigger cam.
79 Corvette L82, 4 spd, black, red interior, headers, flowmasters, and unkown bigger cam.
'03 Grand Cherokee Laredo, 4.0 4x4 daily driver. 165K miles, and runs great
'08 Tahoe LTZ 4x4 155K
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