I need to replace the valve springs in my 81' Corona rt132, but yeah...I don't know what i need to do. Does anybody have a step-by-step guide on changing them or something? I'm no newbie to engines or anything...i always have problems with the heads... Has anybody ever done it before and have some advice? Any info would help. Thanks. Also, whats the best oil to use for one of these engines. It only has 72,xxx Ks on the clock.