Bruce Toth has a pretty poor reputation for taking other professionals' work and advice on porting, copying their work, and taking credit for it claiming they had nothing to do with his development. There are also numerous cases where people have shipped heads to him for porting that aren't returned sometimes for up to a year or more later. There are better, more honest porters out there for sure.
Exactly. Toth's aluminum LA heads are actually Chinese knockoffs of Edelbrocks, which fits into what I said above about Toth taking credit for other people's work. He buys Chinese castings whose design is stolen from an American manufacturer and sells them as "his private line of LA heads." Nice.