Fuel pressure puzzler
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Joined: Nov 2007
Posts: 291
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From: Fort Worth, TX
Car: 82 Sport coupe
Engine: 355 semi roller
Transmission: TH-350 B&M ratchet shifter
Axle/Gears: 3.73 Eaton Posi
Fuel pressure puzzler
I have a strange issue with my holly carb. If i run the fuel pressure thru my regulator anything over 2 psi, the engine will run extremely rich. it will even flood out and die at idle. At 2 psi it runs great even tho the reccommended psi is 5-7. any ideas?
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From: Fairview Heights Illinois
Car: 1986 Irocz
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3.25:1
Re: Fuel pressure puzzler
The carb could have an internal leak that stays sealed at lower pressure.
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Fuel pressure puzzler
Possible, but not especially likely. Fuel in the carb is only under pressure behind the needle.
Thread Starter
Member
Joined: Nov 2007
Posts: 291
Likes: 0
From: Fort Worth, TX
Car: 82 Sport coupe
Engine: 355 semi roller
Transmission: TH-350 B&M ratchet shifter
Axle/Gears: 3.73 Eaton Posi
Re: Fuel pressure puzzler
well i know its not a bad gauge because the reading on the gauge coincides with the setting on my regulator.
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