After almost a full year of sitting in the garage and not having time to fool with, the old 'Vair engine sputtered to life over the weekend. In addition to a massive oil leak coming from either the oil pan or the rear seal (both of which were replaced, but will look into and replace again), there is heavy oil burning smoke coming from one bank. I'm assuming stuck rings on one or more cylinders; any suggestions on how to free those up? ATF and some Liquid Wrench and let soak for a day?