It would be the cheapest route to just use the Victor, and a adapter. Im guessing you have hood clearance cause the current combo is a tunnel ram correct?. The Victor is a good piece.
And should make good power. Those old 9375's work well as single four carbs despite what some may say.

[color:"red"]65 Hemi Belvedere coming soon [/color]
[color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]