I think you will get too much timing like that. Heck, my truck on the tow setting and the Rokktech advanced all the way makes a lot of initial timing. I couldn't imagine adding even more........

I just got back from a 2 day 1300 mile trip and as soon as I got on the highway to leave I got a CEL. The truck was running fine so I kept on hauling. I am gonna check the codes this morning and clear them but I'm betting that I am getting too much timing. This was the first time I had towed anything fairly heavy (11,000lb) with the stack......