I dont see anny connection to a Harley.
May have been a Harley frame but it is not now..
The backbone that turns down (probably to go behind motor in orig application) & diasappears into the carbs, is the epitome of non functionality...
Bought from Harley Davidson corporation..

hello, never heard of it, Harleys are made by the Motor Co, have been for over 100 years..
Keyword spamming to a high degree, looks like..