Billyjobimbobhillbillyhick? Thats the sellers name,
Anyway, he mentions he can supply the guides and seats if you want them, which leads me to believe he has some connections within the automotive realm. He indicated he pressure tested the heads, not easy without the equipement to do so. He is 'connected' in some way with a machine shop. Quite possibly buys up 'defective' heads and markets them. The 'leaks' in the intake on these heads could be a real bear to fix, plenty 'risk' involved, better to sell them outright me thinks...