Pretty much stock 250. Tom Langdon said three may give fire wall clearance issues. 38's area great option,so are 2GC's I want a vintage looking engine that will perform.
this is the car.

I have 14" Crager SS for the front, needs paint but will stay black. Gotta keep it classic, love the two carb set up. Two Weber IDF, would be my dream (four stack sticking out the hood wold be awesome!), but two 38's would do, but gotta have round air filters.
Here is what I have now. The 390 is just to common, but works great too!