SPI
SPI INDEXING WASHER KIT 2-CYLINDER 8/PK SM-01047
Up for sale is INDEXING WASHER KIT 2-CYLINDER 8/PK . The vendor part number is SM-01047 . Read title carefully to know what you are getting. Catalog description…
Indexed spark plugs align the open end of the electrode toward the intake port. The hottest flame meets the new fuel charge for a performance gain, increases fuel mileage and plug life. This is a speed secret car racers have used for years. You simply mark the electrode side of the plug with a magic marker on the porcelain. You then shim the plugs with the washers to align the electrodes toward the intake ports.
