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Old 10-14-2012, 03:56 PM
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1971BB427 1971BB427 is offline
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Is this 10-12 mpg all around, in town, or on the highway. If it's in town it's good, if it's all around it's just OK, and if it's highway I'd say it's poor. I've got a mild 350 in a heavy '69 Suburban with TH400 and 3.73 posi, and I get 16-17 on the highway, and around 13-14 in town, with a 600 cfm Holley, headers, and dual exhaust. Heck, I get almost 13 with my car trailer and my gasser hooked behind it on the highway.
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