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I had never driven a 75 Twin Spark before I did my conversion into my 2000 Spider, but all the press reports at the time reported good performance / economy with the Alfa "noise" still there. I did my twin spark conversion on a small budget so I kept to the stock fuel injection and wasn't sure what to expect.
Having driven a few thousand miles on this engine, I'm totally addicted to it. Lots of low down torque matches the gearing of the 2000 Spider (4.1:1 diff) very well, so you can row it along through the gears listening to the lovely twin cam burble, covering the ground briskly without really trying. However, if you want to go harder then this engine will also oblige and pulls hard in the upper rev range. The power range seems to be broad and the number of modern cars it can live with amazes me. I also get much better fuel economy than I did with my 2.0 on carbs. I would do it again!
I think a Twin Spark in a chrome bumpered Alfetta GTV would make a great car!
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1973 Spider 2000 TS conversion
1971 GT1300 Junior
1983 Alfetta GTV6
2002 156 sportwagon 2.0 T.spark
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