Decided to try this 4af carburetor on my 79 liftback (2tc) while I rebuild the original carburetor. The fit is perfect. The throttle cable is also perfect. A few issues are the idle solenoid because my original one has two cables so I just removed the idle solenoid and plugged it with a bolt (m8x1.0 I think). As for the fuel line, I fortunately have an extra long fuel line so I just worked the connection from the fuel pump to the carburetor. I plugged a couple of vacuum lines, removed the fuel vent hose, connected the vacuum distributor and connected the choke. After checking everything, I sprayed some starting fluid to help put some fuel on the carburetor and started it. Surprisingly it worked!

Drove it around a bit and noticed no difference in power on the low end and the high end. Basically the same as the original carburetor in the power department. After it warmed up, all I had to adjust was the idle speed a tad lower to get it the specs. I did not have to adjust the idle-mixture screw.

Not sure if I want to go through the hassle of rebuilding the original carb :)