rjhat Posted February 2, 2004 Report Share Posted February 2, 2004 I have a 97 Concours. I've been looking for ways to squeeze out a little more juice from the northstar. Since this is the 300 hp version that requires premium gas, i assume that Cadillac has set up the timing in PCM for performance. Can anyone help? Link to comment Share on other sites More sharing options...
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