wwg42

My 1988 f150 was driving fine with a slightly high idle, around 800-1000 rpms. the transmission blew and i let it sit up for six months. i started it up yesterday and to my surprise it began to idle at 3000 rpms and began white smoking, the smoke doest smell like an oily smoke and the oil doesn't have coolant in it and vise versa. i have check for every vacum leak possible changed a few vacum lines and resprayed the entire engine bay with carb cleaner and still no change. has anyone had a similiar problem.