This may be dumb, but can you site there in staging with it in N and you holding, say 3,500-4,00RPM to heat the headers up before you approach the line?
I've never been to WSID, but this would be possible at Willowbank...and now I'm wondering if I have a similar problem because my 60' times are similarly bad given what I've seen other autos with similar power to my LGT can do (my own Forester included!)

