I've seen a lot of posts about this, and about apparently the cas cutting out at high hp levels? I run about 570whp and seem to have zero issues. Other have 800whp z's without issue. I know a timing chain is better for crank signal, but I just havent seen that many problems where this is all of a sudden this has become an issue. Looking forward to the future though, the cas will never be perfect with the timing belt.