Hi I just purchased a 1969 Electra 225 (430 big block) and it's my first classic. I'm not sure where to start but I know I just want it to be a car that I could drive on a daily if I wanted to. So I mainly need advice on good engine serums and whatevr other information you may have I would greatly appreciate it. Thank you in advance.. Oh also if I wanted to swap the 430 for a 455 how difficult would that be ?