[Darrel Goheen]

Thanks for the info. I really appreciate it. I don't know if my engines are considered low or high hp or somewhere between. They are both Stock Eliminator engines. One is a LT1 and one is LS1. I'm assuming they are considered low hp. I really don't even know where to start on WOT AFR. I have them both on 12.7 after about 6000 rpm and about 12.1 on launch (3500) and then take fuel away to 12.7. The O2 sensors on both cars are in a header tube.