welcome.
if its getting knock, get it checked out.
you may not hear it, but its still happening.
make sure to run 98 octane, see if that helps.
hope you enjoy the forum.
welcome.
a little more info if possible?
any mods?
condition?
pics?
and what type of guidance are you looking for?
either way, hope you find what you need.
and the search button is your friend.