Second Blueprint 408 issues

Since you asked, I would take advantage of the warranty included in the purchase of the engine.

^What he said.
I found Blueprint to be an outstanding company and my shortblock was nothing short of impressive.
Planning to share my personal experience in the near future, but between Johnny and Ken there's no greater customer service folks around.

There was some carburetor concerns voiced on your thread about the first engine. Was that ever addressed? If not, both the original failure and this one could be related (oil dilution) and have nothing to do with BP or quality of their work.

Plenty of folks seem to run their goods without much problem.. maybe the third time will be the charm for you?