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Msd Closed

Initial timing means the engine is in its firing cycle. To establish that the engine is not 180 out of time, the intake and exhaust valves must be completely closed. Since a Y-block motor has solid lifters, it was easy to confirm that we were on the money by spinning the pushrods in our fingers.
MSD Distributor - Y-Blocks Forever

 Initial timing means the engine is in its firing cycle. To establish that the engine is not 180 out of time, the intake and exhaust valves must be completely closed. Since a Y-block motor has solid lifters, it was easy to confirm that we were on the money by spinning the pushrods in our fingers.  View Related Article

 

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