I used one of these units on a 780 Holley for a day. I tore it off and threw it in the garbage. This is the best way that I know of to cut your gas mileage in half with no gains to show for the money spent.
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Chevelleless after 46 years......but we did find a low mileage, six speed, silver 2005 Corvette. It will just have to do for now.
