Sorry if this is the dumbest question so far this millenium, however, I took off the intake manifold to replace it with a different one, and when I looked at where the pushrods come out of the block, I could see that it looked like a couple of the lifters were popping up. Have a look at the picture below. You can see one has popped up in comparison to the other. I have had the Pantera 10 years, and it is the first time I have had the manifold off. It is a 351C.
Is this the way it is supposed to look?
If it is not the way it is supposed to look, does it mean a complete rebuild is needed?