I called ARH to ask them about this, since they make high flow cats. I talked with Mike, and he said that it was really up to the tune. Too rich, and they will burn up. However, it seems to me that Ted is right also. It is probably a combination of the two. If you have more volume, you'll have more heat. If you have more excess fuel, you'll have more heat.
I would like a safe catted solution. I don't see that happening real soon since nobody is working on a solution.
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