Absolutely the duals will help the mpg. Remember, "gettin' it in is only half the game; gettin' it out is the other half"! With a tripower setup you're crammin' it in, but you've got enormous backpressure that you need to get out. You will notice a great benefit in hp, mpg and, of course, that wonderful sound.
Also, my goat's got a set of Edelbrock valve covers that I'm thinking about replacing...they sure would look good on that engine of yours with the trips.
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Save yo Confederate money, boys, the South is gonna do it again!
Pecosbill
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