hi all,
I am doing some scanning and am having some issues with knock. Mostly between the 4000-5200 rpm range and .92g cylinder airmass. the knock average is 9 for the 4k/.92 and 4 for the others. The high Octane/spark timing is already down to 10 in those cells. The o2 Readings at the 9000 hz up range from 910-945. I am not sure what to adjust from here. The trims are all within 5%. It drives fine and has good power. Any suggestions on where to adjust or look for the issue?
I have a rollmaster timing chain, 90# springs, 1.85 roller rockers so I dont think valve float is an issue.
