this one is a 126 chassis- but it wont start without the ovp- with it you have to keep your foot on the gas or it dies. While keeping your foot on the gas it idles very rough. i read quite a few posts that said the cracked vaccum lines can cause a rough idle. But my question is can it cause it to have no idle at all? The other thing is the top of my ovp is black and only has one 10 v fuse in it- when you look up the ovp for a 560 it has a red top with 2 10 v fuses. It must be an original ovp cause it has 6 06 1990 on the side of it? All for replacing parts to make the car perform bettter- but right now just would like it to be drivable.