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Jack Shaft · 09-23-2020, 07:37 AM

30 degrees at 2000rpm with a 6 to 1 head is in the danger area for banging out the center bearing.the engine at 4.2 to 1 compression is way more tolerant of spark advance.

09-23-2020, 07:37 AM	#27
Jack Shaft BANNED Join Date: Dec 2019 Posts: 1,196	Re: B Distributor Initial Timing 30 degrees at 2000rpm with a 6 to 1 head is in the danger area for banging out the center bearing.the engine at 4.2 to 1 compression is way more tolerant of spark advance.