I'm biased to old non roller 360. I have a 1975 360 block in my dart sport and it runs well. I make sure to use higher zinc oil to help cam survive. I like to keep all the drivetrain as it would be in its era. But everyone is open to their way of doing things too. I believe a non roller is just as good as a roller LA. I don't like magnum LA's because of the Chevy style rocker set up. I prefer shaft rockers.