I purchased a URD s/c upgrade kit about three to four years ago. I have had the hardware installed in my 98' 4runner for a few years now and the vehicle runs good for general driving purposes. However, I still need help in adjusting the fuel trims for optimal performance out of the upgrade kit. Ideally I would like to find someone in Denver where I live to help. However, I would greatly appreciate any help I could get to fine tune the motor w./ the fuel upgrade kit. I have contacted Brian @ Urd after installing the kit several times but didn't find him much help since he seems to get frustrated with anyone that isn't already a geek about how to do the install.