Spark Advance spreadsheet
 

Somehow, I've been having a terrible timing with "seeing" the spark advance table.

It's bad enough that Kpa is not only foreign, but also upside down, but talk about making mountains out of molehills, they want me to use 256 cells to define what I'm used to defining as:

Initial
Mechanical
&
Vacuum

So, I made me a spreadsheet. Check it out and tell me what you think.
http://home.comcast.net/~Jimragtop2/tbi/spark.xls