What's the performance difference between an SVT and a non-SVT 2.5L or 3.0L? I'm thinking about trading in my Zetec for an SVT in the next few months, but I'd hate to pass up a good deal on a non-SVT 2.5L or 3.0L if the difference is minimal. If the difference is significant, what conversions need to be done to bring the non-SVT up to speed?
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