Can anyone tell me what they would do to a 90 DA. I'm so lost on what I want to do. b20vtec?? h22??? lsvtec?? b18c?? One big question tho. Does anyone know if you can use the b21 block out of say a 1990 prelude with a b16 head??? Another question is, if i go H-series, should i do h23 bottom end with h22 head and pistons (Godzilla swap)?? Finally, what would be the most flexible for say street/road racing and still might be fast if i ever want to go to the drag strip?? The street/road racing part is the only thing that concerns me cuz im afraid a bigger motor than my b18a or even a b20 would be to much weight added. or should i just go turbo ??and screw vtech and higher compression cuz my b18a has 30000 miles after the rebuild and the tranny is the smoothest b-series cable tranny you can find. me so confused!!! I'm open to anyone's thoughts. K-series might be an option but most likely not cuz of how much it looks to cost.