Not Ranked
I've got 2 660's on my 614 hp 428 with a tunnel wedge...it's awesome and no problems leaving the stop lights in a mild mannered disguise for those road dogs that want to cite you. Although how much of a disguise can you really hide behind. Also I get about 12mpg on the highway with my TKO in 5th gear when I don't get too foot heavy with the throtle. Response is excellent even at lower RPMs.
Tom
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