04-10-2011, 02:39 PM | #1 |
Registered User
Join Date: Jan 2007
Location: Whitehorse, Yukon, Canada
Posts: 169
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Attention Gear heads
Just took my first road trip on a new engine break-in. The engine is a 283 with a sm420 and 3:54 gearing. My fuel mileage was a whopping 13 miles to the gallon, I figured it would be up around 27. Looks like I'll be tinkering with jet calibration in the eddy carb. If this doesn't bring up the mileage should I swap out the rear end for 3:08's or change tranny for an overdrive?
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