I've seen some exploded diagrams of the Spica system. That was as close as I wanted to get to it. The only Alfa engine I've messed with was out of a 1960(?) Giulietta. Beautiful little engine, and pretty advanced for the time. All aluminum, twin cam, and thankfully still carbureted.
Speaking of that, went to look at a AW11 MR2 project car last weekend. As my wisdom increases with age, I spent quite a bit of time researching what problems to look for ahead of time, instead of jumping into the deep end head first like I used to. As you can imagine, rust is enemy #1. From the road the car looked tired. Up close it looked neglected. I took one look underneath it and saw more carpet than metal. No thanks, that's not the kind of project I want. Guy originally wanted $5k. Dropped to $3k a week later. Seeing it in person I'd give him $600 if he forced me to take it. Someday I'll have one. Maybe the most fantastic example of the origami inspired 80's Japanese styling that exists.