Another D/Dart 275/273 question???

When Lee (LilCuda) bought my old car from teh guy I sold it to, it had a healthy 273. It was a little loose and burned a little oil (Jahns cast race pistons with .0075 piston-wall clearance when built).

The car is an original 273 four barrel four speed car with discs and handling package, but I had already done a color change (body and interior). He decided on a 340 due to ease with which to make the power that he wanted out of it and for it to remain streetable.

That is the same reason my Barracuda (67 convertible) is getting a 440. I can't build a 375hp 340 that I will be happy with on the street, and I do have a spare 340 in the garage.