1965 Dart 273 fueling options

I have a 4 DR Dart 270. I have a 4BBL Torker intake but it will not fit this engine. The way I understand it there are differences from 65 to later years making a 4 bbl intake for this engine nearly impossible to find. What Are my upgrade options?
I've heard that using later year heads will allow me to use the Torker intake but I'm unsure if this is fact or fiction.
What about running a Fitech throttle body? Anyone ever run one of these? Will it add any performance on the factory intake?
Thanks
Have you tried a wanted thread? Someone may have one laying around. I sold a 65 dual quad intake to a friend for $100. They are out there. You may be able to trade for the Torker. Give it a try.