98RedBird

iTrader: (77)

I was wanting to install new wires and plugs at the same time that i do lt's. and everyone says the car will run rich for a short time until the car relearns. i was just wondering if it will run so rich that it will foul the new plugs that i put in?

LiquidFire350

iTrader: (8)

got about 2-3K miles on my headers, just changed the plugs friday night, you could tell it was running rich but havent caused any driveably problems

BriancWS6

iTrader: (18)

Well opposite to what everyone says about running rich with longtubes I am going to have to disagree. Why? Because my car was running an A/F of 12.2-1 stock with only a SLP lid. I then added the longtubes, ORY, and Hooker catback and my A/F went to 12.5-1, which is in the direction I wanted to go. Another friend installed headers and true duals and his car was at 14ish-1 A/F. I have yet to personally see longtubes make a car run rich. In some cases it may have happened, not saying it's impossible, but from my experience it was quite the opposite. So I say go ahead and swap the plugs as well.

Flawless02SS

iTrader: (9)

Yeah change your plugs when you do LT install, you wont have any problems with your plugs