Started not to weigh in on this because I hate keyboard wars...oh well...I am a LONG time MM customer as well as Mancini and sometimes Hughes but for my "serious" stuff I have always gone to MM, Eric has always treated me right, heads, cams, short blocks, tech advice, etc. I've been using them since the late 80's I think, still have an old ported set of Stage 6's I got from them years and years ago that have thousands of passes of them, have a brand new 512 short block sitting on the stand right now waiting to be installed, it took approx. 6 months to get but I ordered it knowing when I needed it and gave them plently of time. Maybe my story is different from the op's but it is what it is, I hope the op gets his issues worked out with them, best of luck to you.