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Message: <blockquote data-quote="96blak54" data-source="post: 1483566" data-attributes="member: 14727">It cost more money for a tuner package that "gives" the capability to incrementally adjust timing. You may want to look into what diablo offers for upgrades.Secondly, the modular platforms are very efficient. Fuel injection, tiny bores, maximized fuel/air mix through the intake port and in cylinder motion all equate to a more ideal timing curve. Not 30degree advance like the old dinosaur engines. Usually 20-25degree advance is about max for a modular.Also dont judge an engines performance capabilities by how much advance timing can be had. Advancing the timing is a clear indication of inefficiency somewhere. It may be rich mixture, stagnant mixture, to high of octane.</blockquote>