Mallory 390 Ford Distributor? ZC343G

I picked up a couple of distributors at a sale. This one is a Mallory ZC343G. My dad tells me it's a 390 Ford.

What would it work on? Is it Street Rod-able? What could I get out of it if I decide to sell it?

Here's some pics:















Any info is greatly appreciated.

 

It'll work on an FE ford motor, like a 352,361,390,427 etc.

I'll give you 15 bucks for it today. Probably worth more than that but my experience is that the FE isn't the most popular hot rod engine so it may be hard to sell.

 

Hi,
Is the hex drive 1/4" or 5/16"?
Thanks
Fred