I made a map for my 2009 V7 with an Italian R.A.M. big bore piston and cylinder, bringing the engine to 820cc.

Previously, I had knocking under acceleration right at 4k rpm.  This existed even with the stock pistons, and the big bore pistons worsened it.  Attached is a picture of the original head showing the knocking damage.

Kudos to MyECU, for allowing me to adjust fueling and spark to correct the situation!  Also attached is the map I made.  It has spark retarded approx 9 points to prevent knocking (lesser amounts still had knocking), and injector duration is increased by 8% to account for the big bore cylinder.

I'm open to ideas, since I'm just beginning.