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Re: Carbruator for best gas mileage
I'd have to first ask if you have run the 670 or if it is still in the box and you can return it.
With some careful jetting and some other tuning such as picking the right accelerator pump cams to help mileage you might get reasonable mileage with it.
Any carb has to be tuned to the engine it is on and the type of driving that the car or truck it is on is going to do. Many of us put up with a box stock carb that has little more than the idle speed set and the Idle mixture screws set for the highest vacuum reading and little else and don't get too carried away with trying to get the best performance and or mileage out of the carb.
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Founding member of the too many projects, too little time and money club.
My ongoing truck projects:
48 Chev 3100 that will run a 292 Six.
71 GMC 2500 that is getting a Cad 500 transplant.
77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.
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