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I was not attacking you, I know it is your truck and you have every right to do what you want with along with a great how to, I was trying to let others know the major problem of hopping up a 240 Cummins. You may get away with the hop up and the motor last for ever and that would be great, I...

A bit of over tack (showing 2450), 855s do not like over tack, something about valve floating, hitting pistons, ect. There is a reason Cummins put squirters in the 290 and other higher hp motors, trying to pull 300 hp out of a non-squirter 250 (really a 240) plus over tack leads to cooked/broke...

From my experence over the years with the 855s, on the lower hp engines, you will not notice the difference from a single to a duel fuel feed, on the high hp motors, almost all are duel feed because of the high volume of fuel needed, and for a few other reasons.

A lot of 855s and simler Cummins engines had either front fuel feed, rear fuel feed and front/rear fuel feed straight from the factory, Cummins even has/had converson kits to change the feed, all the parts can be got from CUMMINS to do this mod, just need a FAT wallet and the engine SN, a lot...

Sometimes the REAR/FRONT plugs are froze in place and are a real pain to get out, even if you can get to them.