Ok,
you can get the plog from zzp
you do not need a smaller belt for a 3.4, but I use a 4060660 belt with mine
the aeroforce would be a great investment, it can do a lot
the pcm will help performance by making your car run better (custom tune works the best)
get the 180* thermo when you get a tune
If you are too lazy to change your spark plugs you should not mod your car. It takes less than an hour.
Just so the info stays with your ?'s you are knocking I guarantee it. Just because you can't hear pinging does not mean you are not knocking.
