Yesterday we got back from our almost 1000KM trip from Montreal up the Saint Lawrence River to Baie-St-Paul. The car ran almost flawlessly, so I am counting the engine transplant as a win.
The biggest annoyance was a problem with launching the car and low speed throttle control. It took me awhile to realise that the fault lay with what others have called "Sticktion", ie the gas pedal sticks just a bit than moves a bit more than intended... it is not easy to feel through the pedal and your foot, but it can have a big effect on enjoyment of the car, especially in traffic.
Once I knew what I was looking for I found several articles:
This one deals with the gas pedal disassemble and lubrication, details in post #16... this is what I followed to solve my problem.
https://rennlist.com/forums/996-forum/380904-edit-exactly-how-should-the-gas-pedal-be-removed-feel.html
Another detailed account starting at post #22
https://rennlist.com/forums/996-forum/371561-sticky-accelerator-on-cpo-996-a-2.html
And this guy had to go a step further and service the sensor that the pedal actuates because it was binding.
E-gas accelerator pedal service