Thread: How bad is your gas mileage?
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Old 09-06-2009, 04:38 PM
elmariachi elmariachi is offline
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Join Date: Jul 2008
Location: Driftwood, TX
Cobra Make, Engine: Contemporary Cobra, 427 side oiler
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Man, that SOHC with Webers is the baddest of the bad when it comes to Cobra engines.

My side oiler is 9.8:1 compression, 93 octane pump gas, medium riser heads, Sidewinder intake, 750Mighty Demon and a lumpy 294S cam. I have the TKO 600 with .64 OD and a 3.50 rear axle. I am getting about 7mpg running around town and 9-10 on the highway. I am sure I could get 12-14 on an Interstate trip with that tall 5th, but I have to be breaking the speed of sound to use it.
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