Do slant six swaps make you feel guilty?

At car shows,Ive ran into this situation with my 1965 Dart /6, factory Hurst 4spd, convertible.
Many say, put in a small block, which I've thought about many times.
This car is a documented 1-23 Darts built with this combination, for 65.
With the rarity of this car, I just dont have the heart to do it.

Nothing wrong with a modded /6. Everything has its + and - . Just don't expect to go too far out of practical. Souped up a 170 when poor gas made me pull my favorite Commando engine. It was nice and would pull way past anything it's size and get 30+ mpg on the highway, but not in the same league with a HP small block.