Thanks Hank. I found some dyno numbers but other mods were done too, like bigger valves. I would like to know the effect of one component alone, and at the end doing several measurable mods to an engine, it would be interesting to see if the sum of mods is greater than the individual power-adders alone. Which it should be. The lump mod is one of the most discussed one, but I am having hard time finding measurable gains from that one mod alone.
