hi,
Maybe this look stupid but wich oil cap its the right one that go on my 68 289 valve cover. I saw 3 differente kind of cap..and i just want to make sure to buy the good one ! for the passager side valve cover, its only a grommet with a black elbow ?
here the 3 different cap i talk about :
1- hole for tube on the side of the cap
2- oil cap with a zinc\ square 90 degree elbow
3- oil cap with a black elbow
thanks
Math