Hello everyone. Please take this as MVHO and observations from my own test in using alternative fuels in a 2.2 Isuzu engine. First is that there is not a better designed nozzle for a more viscous fuel than the factory design that you already have. Second, I believe you will find the best performance with the factory pop off pressure and all injectors within 10 PSI of each other.......BUT........when doing the drip test on the nozzle, it must stay "dry as a bone" at 75% or higher of pop off pressure for at least a minute..........IF it drips its not clean or it needs replacing..........

If you want to improve the performance of your engine.........clean and set the injectors............and absolutely do not try any alternative fuel without doing this first........trust me........the typical nozzle I test is off 250 to 300 PSI.............

These engines are excellent engines for alternative fuels with just few basic things to do for the fuel of your choice and the climate that you live in........

regards,
crossbones