Re: New member introducing myself and Holley carb
Welcome, David!!! Your 500 cfm Holley may be too rich. When I was driving my 1002, as long as I stayed between 55-58 mph, the WW Stromberg I used was getting around 15mpg. A number of factors need to be considered to get fuel mileage, like tire size, rear axle ratio, driving habits, and so forth. I got my best fuel mileage out of a truck I wrecked by running 7.00-15 6ply tires coupled with a factory 3.07 Spicer 44 rear axle, and 2" aluminum spacer sandwiching a 6-71 blower screen between the bottom 2 gaskets. I got around 17 1/2 mpg @ 2000 rpm out of the engine. A lot more than most of the advertised mpg of these engines.
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