There was a time when Mopar was the fastest most reliable race engine you could buy. That was a long time ago and they failed to keep up. In the last 20 years their contribution to the competitive race community has been abysmal. Yes they had aftermarket blocks for wedge and Hemi stuff for a while, but it is still based on the 4.800 BS. The real race people started looking at eventually producing heads and blocks for 5" and bigger BS. Those are readily available these days. How do I know that? I typically qualify bottom half, and they qualify top half in T/D. I ask how they are able to do it N/A, and they tell me. I can order a 4.75X4.75 tomorrow from Schmidt or Sunset, and have it for next weekend for 10K less than what I have into the 604 Predator on my engine stand. That is fact. So don't ask me what KB's hardships are, I really don't give a rats a$$. Don't even bring up the Pro Stock stuff, it doesn't really apply to that majority of us.