Good Initial Timing and Too much Total Timing Problem. Seeking guidance to minimize total timing. 1969 Swinger 340 4 Gear

RustyRatRod said

In fact, up in the 60s is not uncommon with the vacuum advance hooked up at cruise under no or very little load

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I picked up my first antique dial back (snap on) light. I measured the total and it was about 61 with the VA can attached at some about 2000 to 3000 rpm.

It is a CAP dual point dist. And set at 5 before, spec is 5 after so it is 10 advanced over spec. That would have had it at 51 total with vacuume advance.

Engine runs as good as it can, 170,000 miles on last rebuild.