It is time to rebuild my F22B1 OBD1 engine. I am finding there are not many high performance options for the rotating assemblies. If anyone knows of any sites that I can find high performance cranks, rods and pistons for the F22B1 I'd appreciate it. If there isn't anything, what H series parts can I use? 50MM mains are the same as the H22 main journals. Do I destroke it? I'm at a loss to get naturally aspirated high performance out of this engine.