Quote:
Originally Posted by Ackattack
With my 72 GMC LWB (~4000lbs) with a nearly stock 350 TPI and 700R4 (~270HP) I got a best of 18mpg. A fuel injected 383 will get less than that and carb probably even less.
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I don't see how you can be so sure of yourself. Fuel mileage isn't necessarily a factor of displacement. It's about efficiency.