Partsguy- I value your opinion on many posts here but I must disagree with you on this one. I've done research on this subject & found that yes, while the requirements are different, the cost of getting an engine through the testing process is extremely expensive. Therefore using engines that have already been tested using the fuel system installed Is the best option financially.

Its funny that the fuel system on these fortis Hyster's & Yale's is the same fuel system they put on LP fueled cars in Europe. They call the fuel system "industrial" here, but in Europe it's just an automotive application. The fuel injectors & regulators have the same specs.