+1, I have never had one in a mod motor but I have had a few in other applictaions. A buddy of mine has a rear engine dragster with a 555 Ron's injected BBC (with an eagle crank) . Hey beats it to death from the burn out box on.They most certainly are not crap. They arent the very best, but I gurantee it will handle more hp than you will ever ever dream of making in a street car. I gurantee their failure rate on a mod motor isnt any higher than any other brand.