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You can get a picture of the (big) midrange/torque advantage of the TS by having a look at dyno graphs - for the TS, go to squadra-tuning.com - this is a guy in Holland who does well regarded performance chips for Alfa engines including the 75 TS. In the section for the 75 TS you'll see (at the flywheel) dyno graphs for a standard TS and one with just the chip added. Note the shape and size of the torque curve (divide the Nm by 1.356 to get to lb/ft figures).
For the Nord, in the engine rebuilding forum you'll find a thread of various dyno runs for Nords in various states of tune. I haven't looked at it for a while but what you're likely to find is that the worked Nords have plenty of power, but their torque curves won't be close to the TS.
So, a standard TS in a 105/116 with a performance chip should be good for around 155hp/210Nm at the flywheel. Add mild cams and you might see 165-170hp. That's before doing any head work or going to carbs or throttle bodies. You'll be throwing a fair bit of money at a Nord to match that and you won't have the extra development potential.
Brad
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