Since I got my 550. I've been in touch with Carey for help and my bud and fellow SOC'er Syl M. both have really helped me with this car. I installed a new Redline e-fuel pump, Redline fuel regulator and a Jegs fuel pressure gauge, a Syl M. designed 3rd brake light across both grills inside (using the mid grill screws), two new fuel filters one before the new pump and the other before the carbs, also installed studs that I had my son coat black at the gun smith shop he works at to replace the original nuts. Also got a 6' Blazecut fire suppression system and installed it over the engine and each end over a carb (I know it's a no, no but I spray painted it black). Oh and I added two crests, logo names and one badge.
It's really a nice car, I like it better than my 356. Though I have a clutch jutter issue that I need to square away and a carb issue that I need a local guy to look at.
Pete