This topic doesn't really fit here, but it seems the best place for it, and I think the know-how of everyone here is the best chance of solving my problem.
I have an old GM 230 engine and transmission from a mid-60's era half ton truck. I'd like to use the engine to power my sawmill my hooking the prop shaft right to the mandrel. The only problem with my plan is maintaining the speed; for a headsaw to run true you have to remain a fairly constant RPM. I figure for the speeds my blade was hammered for a 150 rpm variation at the engine either way will be fine, more might be tolerable.
Are there any ways to add an aftermarket governor to such engines? As it is now I think the variation in RPM would be too great depending on the log size and what type of wood. I've found a few sites that offer different governors, but nothing that seems to suit my need.