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Message: <blockquote data-quote="LI98GT" data-source="post: 308162" data-attributes="member: 8068">Going on a few years now with the PI cams/intake swap and haven't "needed" a tune in that time. Idles and runs strong as is with stock timing and air/fuel controled by the stock tune. Don't know what I'm missing at this point, so I can't quantify what "all of my gains" exactly is for me, but had the local mustang shop told me at the time of my last dyno that i could see 10rwhp fairly easily, but it's under the curve that really counts.I did recently purchase a used xcal2, but haven't been able to figure out how to increase the base timing so far.</blockquote>