hi all Just bought a 1963 herald and thought it had a 1200 engine but think its a 1300 engine number GE 78962HE is this the high compression onw? and what is the horsepower, and is there a way i can improve the performance i.e. better cam or twin su`s etc. sorry for being such a noob its my first time on this forum and my first herald many thanks in advance Dav