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Old 04-20-2016, 02:16 PM   #4
Hart_Rod
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Join Date: Apr 2005
Location: Pensacola, FL
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Re: fuel upgrades for cam swap?

Quote:
Originally Posted by BR3W CITY View Post
Depends on the engine choice and cam choice. The 381 pump is usually fine for most basic setups. Stock injectors are a bit limited, but a 5.3 with a medium cam will survive alright with them. A 6.0 with a huge bumpstick will usually want a bit more fuel than the stocks want to supply, or you'll end up with a large enough duty cycle % that the injectors will not like long-term.
Agree with Brew. If you get a flex fuel engine, it will come with some higher flow injectors and you should be alright (42# vs #36).
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