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The 5.7 Vortex engine lets the onboard computer time the engine. Initial timing is accomplished when the timing chain or the distributor is installed. Both the timing chain and the distributor have an index mark for the initial adjustment. The computer does the rest. To activate the computer adjustment one would have to disconnect the battery for a few minutes, I do it for approx. 10 minutes, however it can be done in less time.
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∙ 14y ago
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