I was aiming for 150:1, which is still too low in hindsight. There was a mixup at the transmission shop and AA that got me to 187:1. I can drop my rear gearbox to 1.5:1 and achieve 132:1.
What bore is your brake master? I like it and I’ll need something larger to work those 1-ton brakes.
I was 150:1 with my old setup. It was very nice on a manual. I'm now 186:1 with my auto, but I have a lot more gears to choose from now. and can get that ranging a lot more.