so were you actually experiencing only 1.9* of knock or could you have possibly been pushing it with more without even knowing it?
Yes.
Weird problem i know.
TOGs//Stge III ZZP Blower//LS1 tb// 85 maf//XP cam //105lb spings//3" Dp& high flowcat//3.2",3.0"
Ud plly//Msd wires//Aut 103's//CAI//ZZ PCM//ZZ P shift kit//42.5lb. 13.3@104MPH DEC 08