Sparkplug heat range

Hock

Registered User
Ok, I just got some newly installed mods on my SC and am wondering if its time to go with a colder plug or not. Here's everything that is done:

CAI
BBK 70mm throttle body
5% pulley
IC fan
lightly ported intake and heads
CMRE stage 1 cam
Ported exhaust manifolds

Exhaust will be coming soon, I have a 2 1/4" X pipe with Magnaflow cats and Dynomax super turbos from my last SC to put on still.

Just want to know if it time to upgrade the plugs or not. Thanks
 
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