Hilborn ASCS/Race Saver injection with stacks and K&N air filter. This injection is being sold for another person, all prices and offers go through them. Payment is due immediately after sale. I don't have any history on this unit, it is being sold "as is" but appears to be in good working order and the shafts are snug and not all worn out. Item is for sale locally and sale on here may stop at anytime due to walk-in sale.