I've run it at a low HP rating 75 to 100. My engine was not stock but it can be done safely. I used a flat plat spacer between the port and intake with 3 fogger nozzles but something under the carb would work too and easier.
Get an adjustable nozzle set up and add a larger "pill" to the gasoline side than recommended.
One key thing to do is retard the spark as you hit the button. If you can't do that you need to start out with less total advance which hurts your normal driving.
Like I said it can be done but there will be some trial and and error. EGT's are essential. This could cost some pistons if you are not careful.............Good Luck
