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Re: How to optimize a RCSB for gas mileage
4.3L/5 speed manual is your huckleberry if you can find one. It has plenty of power and is efficient in the right package. Custom tune, smaller/lighter wheels and low rolling resistance tires. Synthetic fluids throughout. You could expect about 18mpg combined, 19 tops if you drive like an old lady. 22 combined is probably not going to happen.
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'20 Silverado Trail Boss ~ '17 Tahoe ~ '79 K15 Sierra Grande ~ '76 Blazer 2wd ~ '71 Cheyenne swb ~ '55 Pontiac Safari ~'50 3100 bagged ~ '80 Wife ~ Late model kids
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