the tow weight and the tounge weight are two different things. As long as your not stacking all that weight on the tounge you should be fine.....with the 4.7 you might be wishing for some more power when it comes time to pull your boat up a steep launch ramp :dammit: but other than that you should do well.
>edit: what he said ^^^ about tounge weight
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>edit: what he said ^^^ about tounge weight