It's no wonder the Slant 6 is so great!
I wanted to join in a say ''yep they is great'' had several Straight sixes over the years!
65 Dart GT drove it everywhere even at £7 gallon (UK).
Before that a 76 Plymouth Volare wagon, drove that for years too.
Current ride a 64 D200 with a 225 six from a 74 dart GT.
But I was given a 318 64 Poly just the other day and YEP, it looks real nice!
I think the bellhousing in the D200 will take a small-block Poly as well as the six???