Looking for an engine builder in southern california

I have a gx200 clone (lo206, tillotson,predator) motor . wanted to do some parts upgrades and was looking for a shop who can assemble it. any recommendations would be highly appreciated. Thanks

I ended up finding a minibike engine builder who seems to know his stuff very reasonable big belly racing

Would you ever want to learn from someone to do it or no? Just curious.

Someday I’d like to get an old gx270 and learn how to rebuild them and make them stronger.

You should! it’s a great learning experience.