Unusual amounts of knock at unusually low timing

[Danspeed1]

I'm sorry, I made a mistake, reviewing my log, I was actually receiving 26* of advance just prior to the knock beginning. In regard to my previous 2 posts; below is a screenshot of the knock occurring.

Please correct me if I am on the wrong track. Spark advance relative to TDC: This is the actual spark advance occurring within the engine (26*), Knock Retard: after the knock occurs 7* of timing is pulled from 26* bring my total down to 19*

Not sure how spark relative to reference pulse plays into this

Also, Please review the two charts I have up as well. You may noticed I removed about 7 degrees of timing from the stock map of SPARK ADVANCE vs RPM vs MAP, and then removed another 7 degrees from the Idle Spark Base Advance as well. I'm not 100% i'm sure how this works but I am assuming that my distributor is set to 6* btdc, plus what the ecm sees on the "Spark advance vs RPM vs MAP" table, plus the "initial base advance" table.

KnockScreen1.jpg