All h22 are DOHC VTEC. a h22 swap into a 90 LX is a significant job requiring custom mounts and body modifications because they have cable shifters, in addition to added weight in the front of the car. Custom axles will also be needed. You will also run into a wiring issue becase i believe the earliest h22 are obd1, requiring custom wiring or conversion harness. Pls the LX is DPFI, which will require you to atleast wire for mpfi.