470 question

Awesome! Thanks Spare, This is my first real boat and I know nothing at all about it. Im also partial to chevys and I guess the 470 is basically a ford, or at least half of a ford, but it does run pretty good for an old boat thats been sitting a while. The speedo was bouncing around 40 when I took it out about a month ago, I cant wait to see how fast it really does with my new gps. Im planning on doing a tune up this weekend and hopefully some fishing afterward.