My dealing's with Max at ST Engines was not so wonderful.
After paying for the BGX-1 gas conversion kit it took 3 months to recieve it.
He did not respond to repeated email requests for additional info regarding the
order.
I had given up when suddenly I get an email telling me that the kit had been hung up in
customs.
What I have recieved is not up to standard either.

The ignition kit looks new but everything else is used. Probably a return.
The carb looks like it came off of a lawn mower, was rebuilt and shipped out.
It is not legal to sell used parts as new. But what do you want from Mexico.

Very disatisfied and will never do business with Max again.

HTH's