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Location: Brisbane
Registered: May 2002
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Re: Fitting a higher flow fuel pump to a 7M-GTE
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Thu, 19 August 2004 22:49

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1. No you should never have to change your fuel pressure unless you're being bodgy (ie trying to push stock injectors further than they should go).
2. Factory return lines are a pretty good size, so it's unlikely they'll present a restriction unless you have a ludicrously large fuel pump. I don't have any problems with my 255lph Walbro, but if you're worried it's easy enough to hook up a pressure gauge and watch what happens.
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