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Message: [QUOTE="IdahoF350, post: 337568, member: 2989"] Twan, the carbureted setup you are referring to would be just like the factory stock system, with the regulator before the head, then dead heading into the heads. On a race car with a big carburetor and a huge fuel need, but where that need is short term, a few minutes at most, it's not an issue. But on our trucks, one of the more compelling reasons to go the full flow route from the front to back of the heads is to use the fuel as a means to cool the injectors. Honestly, the A1000 is more pump than is needed, and that would be evidenced by the 100psi WOT pressures mentioned previously. The A1000 was designed to move enough fuel to support 1000hp on a naturally aspirated gasoline engine, roughly 800hp on a forced induction engine due to the higher operating pressure to offset the fuel pressure delta into a pressurized intake charge. We're not using it for that purpose here. And we're not flowing gasoline, but rather diesel. I would have to crunch some numbers to get exact, but this pump will flow way more than 1000hp worth of diesel fuel even in the 55psi range. I'm shocked that there isn't an "drop in" replacement for the stock pump on these trucks that supports the fuel flow required by 90% or more of the modified trucks out there. Surely a few small tweaks to the stock fuel system and these trucks could support 205s or maybe even 225s with relative ease. And yes, I've had my truck apart and seen how small the lines and everything are, but knowing that the stock system can support nearly 500whp these days, what's the hold up. The stock lines to the heads look to be about a 4mm I.D. so a 6mm or 8mm I.D. would be a massive upgrade in terms of volume. To my mind, -4AN Teflon lines would be a solid improvement, -6AN Teflon would be HUGE! I'm thinking about all this stuff and seeing what everyone else is doing right now to get data for my own truck. I don't want problems, but I want more power. I know I'll need a little more than stock fuel delivery for the 155/40s I have planned, but I'm not about to go crazy here. I'm in Commiefornia so it has to "look" stock to pass the visual portion of our retarded emissions inspection process. I can always de-fuel the tune to pass the snap test for smoke. [/QUOTE]