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Message: [QUOTE="psduser1, post: 1314477, member: 735"] A zf will be fine at 400 hp.... For a while. Unless you actually load it and use 400 hp. Then it'll be a short while, lol. Mine at 40k ish already starting to grumble. The clutch isn't a problem, there are plenty of options out there. No matter what capacity injector, shorter injection times equals cleaner exhaust, and cleaner power. The only way to accomplish that is a better flowing/bigger nozzle. With accurate tuning, of course. Ford really shortchanged it's customers by setting the hp bar where they did back in the 90s. Course, it beat the competition at the time, so that was good enough. Unfortunately, the side effect has been that 7.3 owners start from low expectations, which have been happily met for twenty years by shops/vendors who based their upgrades on factory junk, rather than actual engineering. I've often wished the guy that built my "perfect " injector also had time to write the perfect tunes for that injector. I'd agree with your post, jaybuller, because I bought 160/100s for the same reason. I didn't know what I didn't know. The sales model says, you're buying more performance with the bigger nozzle, therefore the price must be higher. A better educated consumer is really an advantage to a performance oriented business. [/QUOTE]

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