85 S10 4x4 2.8 Stock Fuel Pressure?

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02-13-2013, 10:23 PM

Squad-6

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Join Date: Apr 2011

Posts: 28

85 S10 4x4 2.8 Stock Fuel Pressure?

85 S10 4x4 2.8 Stock Fuel Pressure? Anyone know what my fuel pressure is before I pick up a gauge? Stock up to mechanical fuel pump then 3/8 hose to carb.

02-14-2013, 12:01 AM

ohsofly

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Location: Camrose AB... Canada

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Almost none. What is the issue you are having?

02-14-2013, 10:23 AM

Squad-6

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Join Date: Apr 2011

Posts: 28

I put on an Edlebrock intake and 500 CFM performer carb that I already had instead of the recommended 390 cfm Holley. When I get the timing set. It is idling so fast and loud it scares the hell out of me.

02-14-2013, 01:40 PM

neo71665

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Join Date: Dec 2007

Location: rison AR

Posts: 1,940

On a carb its around 5psi.

With a 500 you have way too much carb and its gonna require some real tuning to get it running right. Most likely gonna have to rejet and change out metering rods.