I've got the one Chevy and a whole bunch of Mopars, so don't worry about getting the boot by any of us! Of course, there's a couple of no-counts out there, but so what! We have fun despite them!
The old-style HEMI sounds cool in an old "A"! The 270 is a bit harder to find parts for than the Chrysler 331/354/392 HEMIs, but there are some good sources in Las Vegas and in central Ohio that carry just about anything for that 270 you may need, if you go that route.