Zodiac has combined it's original equipment-quality advance unit assembly with High-Performance firepower points and condensor. This kit permits replacement of worn out units or conversion to points from the electronic ignitions used on all models from late 1978 to present. These firepower components are the highest quality available today and have been used in the automotive racing industries for years. This is one of the finest-quality point conversion kits on the market. Fits Big Twin models from 1970 thru early 1978 and Sportster models from 1971 thru early 1978, and as a conversion for late electronic ignition models.