Any experience with MABBCO engines?

My group of friends use Blaine's Motor Supply in Dallas, Tx. One friend had three engines done last year. Two are currently running and the other is still sitting for a project (all 360 magnums). Another just bought a 350 for his 95 Chevy Solverado he's building and has been up and running for a couple months now of daily duty. Another friend took his 408 build there after another builder lost his (my friend's) confidence. And lastly, my dad has been running a Blaines motor in his 86 f150 for years now.

Of course there's always a chance something will go wrong but I don't know of anyone, who has actually used them, to have a bad experience.

http://www.blainesmotorsupply.com/details/B6824/engines/4/Chrysler.html