getusum

iTrader: (42)

Question, I'm currently running tr55 in my 408...I was told to run tr6's, but my buddy said the 6's were a nitrous plug and I wold foul them out...Just want to see which plugs I should be using...Oh, and I haven't sprayed this car.....

Steve Burger

iTrader: (33)

TR6 is just one step colder. You need to look at the plugs now and make the call on the TR6s. If the TR55s are running too hot step up.

wilddawg

if you have 11.0 comp I would run a step colder plug to help fight off detnation.