69 Dart Full Resto/Upgrade HELP!

I agree...A v8 would be an easier swap but I would like to keep the slant six and build it up just as a personal preference. I like the look of it with the performance intake and headers. Im not looking for 250 horsepower...which Im reading is possible with the 6...just up the 110 or whatever it has to like 170ish or more if I can run 91 pump and not have a ticking timebomb.