I'm going to have to decide what engine to put into my RV-7 fairly soon. My RV-6 has an O-360 with unison ignition and, to be honest, I've been very pleased. I do however, want to make the best choice for today. To be perfectly honest, one attraction of injection is having a sleeker cowling (no carb scoop). But I'm also concerned about the future of leaded gas. The old Marvel-schebler carb just seems like a good, sturdy, reliable piece of 1930's technology which will be there no matter what the future brings. I fly my airplane IFR a lot, so, I don't really want it to be too "experimental". I'd appreciate anyone's thoughts.