timing...

For sure. Your engine compartment is intimidating to us early slant owners. I can't imagine the confusion for you and your husband as a newbies. Still, it is much easier to work on than most fwd cars.

The AC compressor and smog pump in the front make it very crowded. My 64 slant doesn't have that, or power steering, so can easily reach your hands all around the engine and swing wrenches.