will running rich after lt's foul plugs?
 

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?

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

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.

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