have about 5 go auto-x's under my belt and wanted to ask for some opinions, since I plan to do this as much as possible. I am doing a gear swap (4:10) this week from the stock 3:27's, what degree will this enhance the performance and power to the wheels in second gear. I also would have though I would place better than others, I felt the IRS would be an advantage over a solid rear for this kind of driving?.........any tips for a auto-xer w/ a N/A cobra?