No not acid-more like stubbing ones toes. Over on SV the first gen mod section (first topic in fact)regards rrs. It calls out an FH008 as perfect for early SVs. As it is smaller and put out 35a it might be right for Ninjettes. My SV is at 66k so mayhap it get this mod. Have to look over the Winter as a PO may have done some such or maybe several stators.