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vertstanggt -> RE: throttle body q's (3/15/2005 5:07:09 PM)
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You don't have to do a fuel upgrade with a throttle body cause it's not a huge differance. It's simply less restrictive such as putting in a cold air intake or a cone filter. The computer will compensate for a certain amount of change in the air/fuel ratio. If you were intalling a new intake manifold or something like that you'd def want to upgrade the fuel system at least with a better pump. One the other hand if you've got plans and the money you may as well do it now and get it done. If you wanna go all out you can do rails, injectors, pump, and an adjustable fuel pressure regulator and you should be all set.
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