With the cool dense weather I seen 8# of boost the other day @ 5900 RPM's. I couldn't believe it so I had my brother watch the Boost gauge and he confirmed it. The altitude is so high here that I would have never expected this much boost but with the cold weather it was more like 3k feet above sea level apposed to 6K. Are 19# injectors and 12:1 FMU still safe for 8#'s? Happy Hollidays to everyone