adjustable fuel pressure regulator
Thread Starter
Junior Member
Joined: Jul 2004
Posts: 84
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From: Port Huron, MI
Car: 1988 Iroc Z
Engine: 350 TPI
Transmission: 700r4
adjustable fuel pressure regulator
The guy I purchased the car from says it has a TPIS adjustable fuel pressure regulator. I just need to know where its at...I think I found it. I'm pretty sure its right in front of the distributor,behind/under the intake? If it is, do I have to take the intake off to get at it? Thanks for the help, sorry if its in the wrong forum.
Supreme Member

Joined: Sep 2001
Posts: 1,195
Likes: 0
From: Flowery Branch, GA
Car: 1985 Iroc-Z
Engine: 1 BA 305 TPI
Transmission: Probuilt 700R4 - 2800 Stall Midwest
Axle/Gears: 3.42
That is it. You shouldn't have to remove anything to be able to adjust it. It is a little difficult to get to but it can be done.
Thread Starter
Junior Member
Joined: Jul 2004
Posts: 84
Likes: 0
From: Port Huron, MI
Car: 1988 Iroc Z
Engine: 350 TPI
Transmission: 700r4
Thanks for the help, I didn't even wanna try to mess with it without being sure. Stock pressure is like 42psi, right? I'm sure since the guy bought it that its probably a little higher now. I should run less than 50 for daily use though, correct? I'll go check it out first thing in the morning...2 A.M. right now lol.
Originally posted by FiveSeven
Thanks for the help, I didn't even wanna try to mess with it without being sure. Stock pressure is like 42psi, right? I'm sure since the guy bought it that its probably a little higher now. I should run less than 50 for daily use though, correct? I'll go check it out first thing in the morning...2 A.M. right now lol.
Thanks for the help, I didn't even wanna try to mess with it without being sure. Stock pressure is like 42psi, right? I'm sure since the guy bought it that its probably a little higher now. I should run less than 50 for daily use though, correct? I'll go check it out first thing in the morning...2 A.M. right now lol.
You shouldnt have to remove the plenum. There should be a thin, black screw that comes out of the center.
Member
Joined: May 2001
Posts: 429
Likes: 0
From: Germantown, MD USA
Car: 87 T/A
Engine: TPI 350 ci
Transmission: 5 speed
you definately need the gauge that mounts to the fuel rail to be sure. I have the one offered by TPIS and only put it on to check the pressure when I'm tuning in preparation for a track day.
Thread Starter
Junior Member
Joined: Jul 2004
Posts: 84
Likes: 0
From: Port Huron, MI
Car: 1988 Iroc Z
Engine: 350 TPI
Transmission: 700r4
Thanks for the help guys. About how much will I have to spend on a fuel gauge? It will be a while before I get one anyways. Making $5.50/hour and still owe my dad $2500 for lending me the money to buy the car...the only money I keep from paychecks go toward gas.
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