okay so i put new plugs in the car yesterday, now it revs way high and doesn;t shift till like 4500 rpm, which is really weird, and also its a 4l60 from jasper trans idk what gears i have or i i have overdrive, i know i dont have od d 2 & 1 anymore, because i cant shift past the 2 anymore is this easy guys does it just need fluid, cuz i checked it and it seems fine, could the idle be high? like really high, also i turned the key on, and it sounded like the car was running but just the pistons moving, do i have a erious vacuum leak, and another thing, last one i promise where the hell does this go :