Guys do i need a wide band or narrow band air fuel meter to dial in my 454 Mag with a reprogrammed ecu, big cam and lots of porting. Where do you get them from as well. Thanks

Wide Band..

http://www.innovatemotorsports.com

Twinturbostroker is right!!

They work great. Just need a bung in your exhaust pipes or make a plate to go under your riser. Just remember, O2 sensors and water do not mix!!!

Wide band.

Narrow band (or old conventional style) will only tell you rich or lean, nothing else. Some companies will try to sell you tuning systems using non-wideband sensors. They're junk, and will give you almost no useful info to tune by (they won't even tell you rich/lean if you're more than a few points off 14.7)

A/F sensor (wide band) is the only way to go. they are good from λ=.7 to λ=2.2 a Duel stage O2 is only accurate from λ=.9 to λ=1.05

Wide band !!!!

Standard are from the Flinstone ages..

I am running the LC-1 from Innovate. Had problem with it and they replaced it, since then no problems. Still on the first O2 sensor as well. Even mounted it in the most wrong postion (6 o'clock).. I have it connected to my ECU and a dash gauge. I like it very much..