Before you disappear into the distance after being shown away Dane, it would be interesting to know what year your Effy is, what style you plan on building it and what it will be used for mainly. That might help you in determining which Ford V8 motor to use.
By the way, i like your initiative of using a Ford Motor in a Ford car

, there are plenty of 'oldtimers' not as brave as you

. Don't get me wrong, it's just that the traditional South African Rodding recipe requires a 350 Chev on top of your Jag front suspension no matter what body you use.