Took the car to WSID last week for another run. Now I have the taller 4.375 gears and tall Kameari first gear it is unfortunately much harder to launch. My 60-foot times went from 1.7 to 1.9-2.0. The extra power with the 102-octane tune was evident in the 109.8mph terminal speed, but the elapsed time was much the same at 12.88.
I could put a normal gearbox in to get a more suitable first gear, but to be honest I don't care enough about drag racing to bother.
Also had the car at the Marulan driver training track a couple of weeks back. The tall second gear was enough for most of the track, apart from the last 100m or so of the straight. Fun for a day but I feel like I've done it now... no need for another try. What interests me now is the new "south" circuit at Eastern creek, which would be good fun in the Zed.
Here's a video of the run