'72 is still a "good" year for the big block Fords. The heads should be ok for street use. Big Block Ford's react well to cam changes, if the correct cam is selected!!! I always use one of the questionaires the cam companies have, just fill it out completely and accurately and study their recomendations. What are the miles on the engine? If it's got a lot of miles it could be in need of a good rebuild. Best way to tell is to do a leak down test on the engine, this will give you a good indication of the engine's condition.

Anyway, welcome to CHR!!! Always good to have new members from other countries and gain a bit of insight on Hot Rodding in other countries!!!! Ask away on your questions, there are lots of very knowledgeable folks here that are always glad to offer advice!!!!