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7 Pin point precision ignition performance comes from MSD's billet distributor with vacuum advance for street use. For initial fire-up, Mark opts for 6-12 degrees BTDC (vacuum advance disconnected and plugged) and runs the engine at 2,500 rpm for 30 minutes for proper break-in and ring seating. Proper break-in should include loading the engine and applying throttle. This is where dyno testing is a good investment in a new engine. Average cost is $600 to $1,000 per session.