My brother had his 396 LT1 FI stroker put together by nick@nu-tek, He had the same problem as you. No returned calls, no returned emails but they were sure to cash his check right away. He ended up waiting 5 months for his block to get to him. But in the end Nick took care of him, he added in a mildon LT1 oil pan, racemaster crank instead of the dragonslayer and something else but I can't remember what. If you ordered an engine be sure to check that thing out. The cam that was installed in my bro's block had no cam lube on it at all, it was completely dry

I am glad we opened that thing up before it went in.
So take it for what its worth. Looks like a lot of places in the LS1/LT1 world like to treat customers like this.
J