Boxer engines means you need a lot of footprint for an engine bay, not height etc. Like most inline 4 cyls.
Based on this, you have little to no luck getting a boxer 4 between the chassis rails of a LOT of cars. In fact I'd go as far as the only chassis you should even think about swapping an FA20 engine into, is another soobie
There's a lot of high output, free revving NA engines out there, the FA20 isn't anything special over the others. Apart from the D4S system, it's barely Toyota made anyway.
Get a 1.8 2ZZ or 3SGE BEAMS and chuck it in a TA22, much better choice. Even a 7AG blacktop would be sweet.
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