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  1. Vintage Mustang Forum
    Video -Timing is set at 13 BTDC -MSD distributor is set up with 21 degree blue bushing and 2 blue light springs -Idle at 1200 - 1300 rpms -Vacuum at 18 - 19 Hg Does the idle seem a bit high? I can’t seem to dial it down (idle speed screw) without losing vacuum. See video for details.
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