400 B block

Dorian, John has the experience. The reason he has not bought is because of that experience, and his eye for detail. I have used 440Source parts and I'm very familiar with them. From B/451" to RB/505", i've measured 6 or seven packages over 4 or 5 years. The first one had issues. The latest one had the same issues. The parts are first and foremost affordable for more builders than the well machined stuff. Quality of manufacture was definately NOT a primary concern. Nor has it shown over time to be an issue to improve on. I am wondering what things you've found and decided were non issues? I know what to look for and what it takes to correct. As I said every kit had the same issues, except one that had a unique problem that i'm sure was just an "oops".