3.70s. Anything higher with that hp you will just spin the tires. I went from a 4.10s to 3.70s and now my 315/30/18s grip well all around. 6th gear cruising at 70mph will save your ears and get good gas mileage as well. Drop it to 4th gear and pull hard from 60 mph to 120mph. Remember when people are suggesting gears make sure you ask their tire size, trans and engine.
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