S scottstta#1383 Member Joined May 16, 2003 Mar 25, 2017 #1 i used this when i race my numerous 86-87 gn will record rpm knock must have if racing can keep you tuning alot better thans guessing gaurantee to work 75 plus u pay shipping 330-608-4063 thanks Attachments graiglist new 028.JPG 147.7 KB · Views: 31 graiglist new 029.JPG 129.1 KB · Views: 24
i used this when i race my numerous 86-87 gn will record rpm knock must have if racing can keep you tuning alot better thans guessing gaurantee to work 75 plus u pay shipping 330-608-4063 thanks
