Clifford Performance

Over the last 20 years, Clifford Performance has acquired a bad reputation for things like warped castings etc.
Can anyone give me feedback on this?
I am wondering if it would be better to deal with either AusieSpeed or Offenhauser in terms of intake manifold, exhaust, valve cover, etc?
Thanks
I have all clifford P stuff on my slant. I love every thing I bought it works great!