There wasn't any audiable detonation when it was on the dyno, but the the a/f ratio was flirting with the 15:1 line in the higher revs. The knock sensor was kicking in that's why the line is all jacked up...

Vadim@Sho-shop stuck an adjustable fuel regulator and it smoothened it out.

David Zambrano
svt_mondeo at yahoo dot com
CSVT E1 #4808 - soon to be 400hp
You get what you pay for. All advice here is free.
http://www.geocities.com/svt_mondeo- my homepage