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Old 04-13-2008, 12:02 PM   #1
heavy70
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TBI" how much fuel pressure does it take?

I have a 62' chevy and i put a 87' model 350 TBI and want to know if i can just use a holley blue pump to feed it.
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Old 04-13-2008, 04:07 PM   #2
LONGHAIR
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Re: TBI" how much fuel pressure does it take?

With TBI, it's as much about pressure as it is volume. I think you need about 18-20 PSI to make it work.
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Old 04-13-2008, 04:56 PM   #3
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Re: TBI" how much fuel pressure does it take?

If you already have the Holley blue pump, you can try it without the regulator. It might work, but it is not really designed for this purpose. There are better choices if you need to buy one.
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Old 04-14-2008, 02:56 AM   #4
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Re: TBI" how much fuel pressure does it take?

My '90 Silverado required 9-13psi running.
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Old 04-16-2008, 05:05 AM   #5
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Re: TBI" how much fuel pressure does it take?

optimumly you need about 13lbs at the TB.
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Old 04-16-2008, 04:47 PM   #6
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Re: TBI" how much fuel pressure does it take?

9-14...
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