Well worth fitting. My car runs so much smoother.

It's basically a modern car style ignition system, gives a stronger spark and fires on 2 spark plugs at a time instead of 1-3-2-4 or what ever cossie's order of spark is, Gets rid of the need for a distributor.

Just fit as per instructions with the 2 pins through the grommet and making sure this (picture) is removed and the 2 wires going into it are put together.