yes hedders were glowing with the .025 ifr's too.
There is no vaccum leaks anywhere, I have checked for that.
I also had 2 fouled plugs when running the .025 ifr's as well.
I ordered 4 .020 ifr's and when they get here I will install them and see what happens, probly wont see them for a few days. But if it still does this with the .020 ifr's then I'm throwing in the towel and spending the money on a wideband. I just cant really afford it right now, that's why I am trying to figure this out without spending the money on a wideband. But like I said if it still does it with .020 ifr's in it then I will just spend the money for a good innovate wideband.