What is it worth

[Ridin Dirty]

Im wondering what a 61/62 389 421 Factory Pontiac dual 4 barrel with twin 500 cfm carbs worth ? I had a guy that owed me money so he gave the setup to me . I know its got to be worth something . Where can i find what value this is off the Internet ?

 

[Ridin Dirty]

Here's a picture

 

[T2T]

Pontiac was big time into tri-power back in the day.................You don't see many dual fours. I usually check EBay to get an idea on value.........Good luck