Join Date: Feb 2003
Location: New Jersey USA
Starting with the 1750 series in 1968, Alfa installed a 'distributor & ignition coil protection kit' (part number 105.26.05.920.00). The kit consisted of six pieces; a rubber boot for the coil, a rubber top seal (the rubber boot your wires have), two half shell distributor covers and two clamps to secure the covers. The original 5mm green ignition wires did not have sparkplug wire boots on the distributor side.
Many have found, including myself, that the dizzy covers present a bit of a challenge to R&R and either shelf or bin the things. In my experience, the covers are not mandatory. However, with your bootless wires, and especially with one wire having exposed metal, I'd put boots on all the dizzy wires and be done with it.
Series 2 USA 1750 GTV (in Series 1 European clothing)