I had at one time thought very hard about adding an M90 or something of the like (remember, pontiac SSei, and GTP, along with the Thunderbird SC) on my old
82 aircooled Vanagon. So I borrowed an actual charger from a friend who is into the super coupes. Decided there wasn't enough room in my engine bay, and too many non reversible cuts would have to be made...Not sure it would be too hard on a baja sedan though...You'd more than likely want to go to a single holley
4bbl, or maybe a single IDF....
On a side note...I did purchase a good Gladder charger that I did intend to put on my vanagon.It'd had been a 2L G60...and would have rocked (already had cam, exhaust, and VR6 clutch, along with a *wonderful*(?) Webber progressive.)
I miss my van.
Good luck with your SC project...