Is it REAL? Keith Craft takes the Challenge! The Results

[coyled]

I would like to see what that motor put out at a safer and more realistic 12.5 to 13 to 1 air fuel ratio. At the air fuel ratio's on that graph, and 40 degrees of advance, how could the motor survive on a road course? Maybe at the drag strip for each pass running that lean. How did the ve numbers come in that high at 125 plus? I have a yates headed 358, 12 to 1's running at 13 to 1 air fuel ratio and 30 degrees of timing, that made 670hp on the dyno with ve's in the 114 range. Even at that air fuel ratio and with good fuel, when we tore it down for a refresh, there was detonation evidence on a few of the main bearings. I ran the motor hard on the road course for several years. I am impressed with the hp numbers and think that a good builder like yourself is a huge benefit to members on this forum. But, I would like to understand how you got the VE numbers and how lean can you run these motors and expect tham to last? Thanks, Scott