Re: The 73-79 F150 Search
-if you like FE motors, they were only offered until 76.
-75,76ish and later had Duraspark electronic ignitiion which is really very nice to have.
After that, I guess it is really a question of "what grill do you like the best?"
Of course that shouldn't be a huge issue as you an swap them around, ie if I found a perfect 76 and I REALLY wanted a 78, I wouldn't pass up the deal just because I didn't want to swap a grill around.
My truck is a 76. I like the dark grill, I love 390 motors, and I don't have the desire to mess with points. :-) good luck!