NGK spark plugs

[massacre]

Just wondering what people are running for NGKs, the TR6s, TR5s, etc.
My car is N/A with the intake cams advanced 4 degrees.
Thanks for any info you may provide and have a great day.

[fastblackmerc]

Just wondering what people are running for NGKs, the TR6s, TR5s, etc.
My car is N/A with the intake cams advanced 4 degrees.
Thanks for any info you may provide and have a great day.

Here is information on spark plugs I've accumulated:

Stock Heat range
Autolite – 104
Autolite Double Platinum – APP104
Autolite Iridium / Xtreme Performance – XP104
Champion Copper Plus – RS12YC
Champion Platinum Power – 3401
Champion Double Platinum – 7963
Champion Iridium – 9204
Bosch – BSH7571
Bosch Platinum – BSH4205
Bosch Platinum+2 – BSH4305
Bosch Platinum+4 – BSH4458
NGK V Power – TR55
NGK G Power Platinum – TR55GP
NGK Laser Platinum – PTR5C-13
NGK Irdium IX – TR55IX
AC Delco – R42LTS6
AC Delco Platinum – 41810

Colder Heat range
Spark Plugs:
NGK – TR6 (+1 colder)

I use the TR6 plugs and a colder thermostat.

[massacre]

Wow-thanks so much for the information.
So are you running a 180* thermostat?

[ctrlraven]

I've been running NGK TR6IX (1 step colder) plugs with a 180 degree thermostat.

[fastblackmerc]

Wow-thanks so much for the information.
So are you running a 180* thermostat?

Yes. You'll need a "tune" to take advantage of the colder stat & plugs.

[massacre]

^^ Thanks guys. This was what I was thinking of going with, thanks for the conformation.
I'll tell Lonnie when I get my tune.

[Cobra25]

I've been running NGK TR6IX (1 step colder) plugs with a 180 degree thermostat.Same here. Doing this for years now, run's great no problems.

[ctrlraven]

Same here. Doing this for years now, run's great no problems.
Yep, I'm on my 2nd set now, put about 70k miles on my first set and when I took them out I thought they would look really bad but they were pretty good and looked just how they were suppose to and no oil on them! YAY lol