Looking at a 1965 Dart 270 Convertible – Questions

I am going to look at a 65 Dart Convertible tomorrow and have some general questions I hope someone can answer. The car is a slant six (225?) and 4-speed which the owner states is factory Hurst shifter. Was there a factory 4-speed Hurst shifter in a slant six and are there production numbers for convertibles with slant six and a 4-speed.

Thanks Mike