It seems the older I get ( which happens often) I like using the old ones even though there not the big cubes I struggled for not even five years ago. I have a 65 396 that needs a freshen up and another 66 396 that just sits in storage. I just came across a few sets of camel hump heads for my small block just to have that 60's era. I have a few older small blocks like a 68 327 and a 69 302 dz which is just a block. Some how they just seem to wonder in my shop and I just can't turn them away. Nothing like vintage cubes