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I did a RUF 600 hp kit on a customer TT years ago and they sent new n/a 993 cams in the kit. My cam grinder said the n/a cams are bigger however I should double check that since you bring it up. The next step up is 3.8rs cams but they get a bit too lumpy at idle
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79 930 405 rwhp,84 911 track car
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