Hi,
It's been a while since I made any progress getting my car back together. First I'll post a few pictures from my trip to Austria, where I went to a Porsche museum in Gmünd, Austria. At the end I'll post a small write up of changing from the throttle linkage to a cable I bought from Pegasus.
Early 911 Engine
Lets go racing
Now for the throttle cable install. I needed to do this to connect to the throttle linkage on the Jenvey ITB's. There are some threads talking about replacing the linkage with a Morse cable for push-pull operation, in my case I just needed a pull so I purchased a 108" of teflon lined jacket and about 125" of cable with 10-32 threads on one end. This cable is too long and it will be cut to size once the engine is installed. It turns out the 10-32 thread fits the 5mm metric ball end at the throttle. The thread engagement is good and I used a locking nut plus loctite to secure it. It's a little scary to pull out the original throttle linkage out of the tunnel, once it is out I don't think you can get it back in easily. I needed to fabricate an end bracket (near the gas peddle)that was attached to the tunnel with 10-32 machine screws, see pictures below. The bracket protruded 1" from the wall inside the tunnel and when installed I found out the clutch cable rubbed on it. To eliminate the rubbing the bracket was machined to 0.750". For me the most difficult part was getting the screws to engage with the bracket. Under the dash board there is not much room to work and it was hard for me to get the screws into the threads I put in the bracket. Today I finished this part and I probably won't want to change things for a long time, if ever.
Throttle cable end with bracket before machining to final size.

Picture of throttle linkages before install