6 cylinder gurus... need opinion

I have a '65 with a 318 / 727 installed. Stay with the six.

B.

I had swapped a 360/727 in my 64 barracuda. I too would stick with the slant six.

Wondering what each of your specific reasons are? (I will be faced with the decision whether to tear the heart out of my 6, so wondering what some specific regrets are from those who have done it.)