Ford Mustang Forum - View Single Post - 275/40 20 with 4.30s. Will this combo work?
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post #3 of (permalink) Old 09-11-2006
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I assume you are naturally aspirated? Top end speed with 4.30s is going to drop 15 or more mph. Off the line it's going to be a bat outta hell but your gas mileage will suffer unless you compensate with UD pullies or an electric water pump. If you do any highway driving, 4.30s probably aren't for you.

1965 Mustang Coupe
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