FriscoProx Well-known member Premium Member Apr 15, 2016 #1 Very good shape valves. Come complete pair ready to install. Will likely need new tuning springs as the ones included I ran above 10,000' and used a spring lighter than than STM's high elevation spring. $220 shipped. Mike NineSevenZero 485 2996
Very good shape valves. Come complete pair ready to install. Will likely need new tuning springs as the ones included I ran above 10,000' and used a spring lighter than than STM's high elevation spring. $220 shipped. Mike NineSevenZero 485 2996