u actually got an engine stamp that says b18a2??
just had a quick research dont think itll have vtec, i reckon itll be like the series 1 b18a1 (cuz 91, so odb0), just diff number due to different domestic market, i think thats edm
like say b18c2 and b18c1 are exactly the same i believe, but ones audm and the other usdm.