fwi
Well-Known Member
I leave on the footbrake at 3000 and shift when I feel like it, usually about 5500 just before the tach light comes on (set at 6000).
If you want to have a good starting point for shifting and don't want to use the string trick that works,
Take your car to a chassis dyno and do a all gear dyno run.
Look at your results and go from there.