Carl Stevenson said:Personally I would not spend any money trying to make power with a 307. They just never were what a 327 or 350 is for power. Just my 2 cents though.
i did the exact same thing, chose a 327 instead of a 350 to be different. have had it in my 70 nova for 20 years. very dependable motor, affordable, good power, and just a little bit more rare than a 350. by the way, the 327 also replaced my 307 which is currently being used as a boat anchori chose to build a 327 instead of a 350 so i can be different they are pretty hard to come by around here and i like its reputation but each to there own its mainly what you like and are wanting to do with it.