ORIGINAL: BruceTharpe
The best model-size pulsejets available today are made by Earl Bailey in Houston, Texas. The engine is a Dynajet clone, but manufactured to a much higher standard and reasonably priced. He did have trouble supplying them for several years, but I believe that is all behind him now.
There aren't many suppliers of pulsejet engines and I hear that Earl's engines are very nicely made but they might be ousted from "best" by the Zanins coming out of Italy. However, I would say that Earl's represent *much* better value than the Zannin which have an unearthly high price-tag.
Whose model would that be then? :-)