I just got a cable on monday so today i was just driving around and glance over to my lap top to see what was going on with the spark, knock, etc. so my question is at a stop light my advance was at 20, at around a 1/4 throttle the spark advance was around 40, Is that normal because it seems pretty high up there?

 

With just knowing that, yes that's fine. My will go to 43. Just as long as it's not 40 in your upper TPS range

 

There are two tables of spark advance as a function of RPM and MAP. I have part of one of the tables in my online scanner writeup. Those numbers seem consistant with the stock table:

http://members.aol.com/InjuneerZZ/ScanMast.htm