340 dynoed

When I’m testing on the dyno, I usually prefer to find the point of valvetrain unhappiness, or run the engine as high as I feel is safe(for the sum of the parts)…..whichever is lower.

With Hyd lifters, valvetrain unhappiness usually happens first……..and I like knowing at what rpm that occurs.

Sometimes though, on a really mild build………it peaks so low, and the curve falls off so fast that you don’t find the float, or get to the safety limit.