What plugs would you guys recommend for the Small Block Evolution .60NX with Jett Muffler. I am running about 15,200 with a 10-8 on 20%, but will be runnin 10-15% when I fly the sundowner. I only ran the 20% because that was the only jug that was opened allready. I would like to try some Merlins though. The plug recommended for pipe use according to Horizon is the HAN3015 # 9 Performance Glow Plug. I asume this is a MCcoy plug, but which one is it. I have been running a OS#8, but they are kinda pricey.
