There is really not much of a difference, but the A9P is actually better if anything:
A9P:
WOT_ADVANCE_VS_RPM # WOT spark Advance vs RPM
( 16383.8, 26 ) ( 5000, 26 ) ( 3500, 22 )
( 2600, 23 ) ( 2250, 22 ) ( 1600, 18 )
( 0, 18 ) ( 0, 18 )
A9L:
WOT_ADVANCE_VS_RPM # WOT spark Advance vs RPM
( 16383.8, 26 ) ( 5000, 26 ) ( 3500, 22 )
( 2600, 22.5 ) ( 2150, 21.5 ) ( 1800, 18.5 )
( 1000, 8 ) ( 0, 8 ) ( 0, 8 )
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