If you have a stock Delco ignition control module it should have the numbers 369 on top. The 369 module ends up adding 2° of timing above 3,200 rpm due to latency within the module and PCM. 28~32° of advance is all these heads need. I have found most like 26~30° of total timing. I find it odd that your PE table only has 2°. I have not opened the stock BJYN van calibration I was using from a 1995 G20 in years but I am 99.95% certain that it is adding 4.0° in the PE table at 4,400 rpm.
If you happen to have an 048 module it removes 6° at 5,000 rpm.
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