8" vs. 9" convertor

I'm thinking this will make a big difference for me. I'm leaving off idle, flashing to 3,500, which is 1,000 HP under peak TQ.

I'm also trapping at 5,200 and I make peak HP at 5,900 with a very broad curve, slow fall off the other side of the graph I should be trapping at 6,200. THat will require a gear change, unrelated, but between the two, I expect a pretty big change. My short time is 1.74 or so. I figure if I can get that into the 1.60 range, plus trap in the correct range I should see a 10.60 range, maybe better.