This is my first post and I'm sure this sounds dumb but here it goes. I just acquired a 59 f100 auto swb with a rebuilt 302. And I'm needing an engine I can at least hit 18 on the highway because of my job. I'm wanting to just grab a donor vehicle but I'm just not sure what vehicle to get for a pretty easy swap. I've read forums about crown Vic's, continentals, and mustangs. My real question is which would be better and what year should I try to find?

Thanks for looking

 

You might try changing your gears.....