Here is a new in package set of (8) Champion spark plugs.  They are part number RJ18YC8.  They are stock no. 50.  These are copper plus resistor plugs.  My husband and I had a machine shop.  He passed, leaving me lots of surplus shelf stock inventory to sell.  This is a part of it.  Be sure to check out my store often, as I am gradually pulling parts off the shelf and listing them.  Shipping via USPS ground advantage.  I ship out same or next day, and will always combine shipping.