Well, after several weeks of waiting for parts, work travel and family travel, I've finally got the 2100 installed and running. I've still got some fine tuning to do and I can see the choke becoming an issue, but it's already much better. Driving home from my dad's last night, I got the Jeep up to 120 kph (75 mph), which I've never been able to do before, and it was sustaining speeds of 100-110, which I had a difficult time doing prior to this. No kickdown when I step on the gas on the highway though - will need to adjust the TV linkage to the 999.
The down side is that I did the TR upgrade and the 2100 at the same time, so I'm not sure what resulted in the performance gain.
I had a few issues to work around when it came time to doing the throttle linkage:
1. no welder, nor the skills to use one
2. automatic tranny, so converting to rear pull would cause other problems
3. didn't want to destroy any parts (carter linkage, original throttle rod, or the ball studs on any part) in case i had to go back to the original for whatever reason.
My dad came up with the idea of a pivoting bracket to change the direction. It perfectly addresses all 3 issues above.
By the way, if anyone can tell me what is so badly out of adjustment that the arm which rotates with the throttle arm (the one with the bolt in it) just flops around (see pic), it would be appreciated. Right now, it doesn't seem to serve any purpose.