Looking into building an air cooled race motor. I've searched around for some information regarding builds that utilize case induction. Found a few old threads, most are so old that pictures are no longer working. I am quite skilled in welding, fab, & machining. I am just looking for any walk throughs or write ups on this topic? Probably will end up going with a dutch made race cylinder. (45mm) But open to other options (kx80) but also I am looking to stay air cooled. I'll be starting with a bare e50, and building everything accordingly. I have seen what looked like an adapter plate that was in production, but couldn't locate much more information on that. Totally okay with cutting the hole and welding matching mating surface material, But location and shit I have no clue on.