My brother needs a portable generator to run the block heater for his 7.3L ford diesel for about an hour every now and then during the winter months. I have a like new 7 horsepower 170432 Briggs powered 3kw Pincor generator that I would feel no real remorse if it was tossed about in the back of his pickup. The unit has about 30 hours of run time on it, and it like most 3600rpm generators run at the brink of destruction. Since the only thing that will be plugged into the generator is a 1000watt block heater, would there be any detrimental issues if I set the governed speed down to 3200rpm? That would save extra wear and tear on the engine, keep the noise down and shouldnt really effect the block heater performance one way or another. I do not think these Pincor contractor portable generators have any automatic voltage regulators in them. I will have to add a car muffler to this unit to keep the noise down. My brothers college will not allow him to run an extension cord to the trucks block heater, nor provide a power outlet. What do you guys think about this idea? Id hate to run it wide open with a big muffler, these engines already had trouble pushing the heat out of them.