Sorry for returning this thread to the OP's original topic.
My Engine Factory 408 runs great. Doesn't burn
oil, doesn't leak, just fires up and goes. I did have issues with the Edelbrock carb. Finally replaced it with a Holley Double Pumper, and wish I had done that sooner.
All the OEM boxes for the new parts they used in the production were included in the crate.
I'm selling my SPF with an EF engine and just want to go on record in public forum that I have never had a problem with it, other than carb-related.