Well if you wanted mileage you should have stayed with the stock carb. And I hate to tell you but the quality of the gas these days has dropped a ton. I used to get 14 - 16 with my Dodge Ram 1500 4.7 V8 and even now after a plug and oil change after a good SeaFoam treatment I am luck to get 11 - 12. The bad thing about the HSR is there are so many ways to jet and configure it and it being a mechanical carb your always wanting to twist the thing.
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