Im looking for some basic advice for my 1955 Pontiac Chieftain wagon. 1st of all... Im a girl. Secondly... I bought a pontiac! Im trying to learn all I can, and have, but I certainly now understand what my husband meant when he kept telling me to buy a chevy. The wagon is in good condition and I want this to be a daily driver. I'm not unhappy with the way the original car handles. It is after all, a 1955, but I have spent untold hours researching brake and steering/suspension upgrades. There is a lot of conflicting opinions. Finally ordered and installed scarebird conversion. Still have the original mc with a proportioning valve. Am looking to add dual mc and power boost. A lot of guys recommend at least a 9" dual boost, saying anything smaller is not very effective. Ive also noticed that the corvette mc seems to work well because of the ports on either side. Am I missing anything? Do I really need the power boost or just an upgrade on the mc? Some of the suspension has been updated. I ordered an new idler arm and drag link kit. Basically want to replace anything that could affect handling, but Im stuck on the power steering. My manual steering box is leaking and needs replaced. Ive read where the 605 is a bolt on replacement minus the mods to steering column. Then I read where the 605 is a piece of junk and I should go to the 500. Somebody please help me out. Is it worth swapping to power or should I do a full rebuild on original and be happy? I have an old school mechanic. Knows all about vintage but is a strict Chevy guy. He doesn't seem real enthused about doing the leg work for Pontiac. Besides, Im trying to learn all I can about the car. I was hoping to feel confidant enough to just order the parts and say here you go. I would appreciate any feedback. Getting really frustrated.