05-16-2014, 05:42 PM
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CC Member
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Join Date: Mar 2004
Location: Sunnyvale,
CA
Cobra Make, Engine: Factory Five Racing MKIII Roadster 347
Posts: 1,053
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Not Ranked
When I was building FFR 4883, I thought about the ramifications of building something as basic as a carb'd V8, and knew the mileage wasn't going to be terrific.
My previous V8 carb'd vehicle was my 65' Mustang with a 600CFM Carter that I would take up to Lake Tahoe along with my needles and jets. Best I could ever achieve was 14mpg so I took that and figured 12mpg on my 347 motor.
Fast forward to last month and my 886 mile trip to Huntington Beach and back to Sunnyvale, averaged 16.9mpg with a best of 19+mpg going down (headwind was brutal coming home, averaging 15-16 northbound). This from a 400+HP motor.
So my answer is actually NO; cost is nothing; I only track mileage on long trips so I know when I need to fill up. Otherwise, I'm good with paying whatever for the pleasure to drive my machine.
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