Greetings Everyone, I looking for recommendations for a good street performance electronic distributor. My car currently has the GM HEI ignition (probably from the ‘70s) and I’m rebating trying to recurve the mechanical advance or buy a new one from DUI where they say they will curve it to suit my engine. Currently mechanical advance seems to be all in around 2000-2200 rpm at 36* BTDC. I’ve tried some different spring rates with no noticeable difference so far. So I going to try heavier springs to get full advance up to around 2800-3000. I’m not sure how tunable the HEI is, am I better off to go with DUI or MSD or Pertronix? Or, perhaps the original type distributor with a Pertronix kit? I have to say I’ve gotten some really great expert advice on this forum. Thanks!