SBC 350 question
Thread Starter
Intermediate
Joined: Feb 2020
Posts: 29
Likes: 3
From: Rosharon, TX
What should Fuel pressure be?
77 stock 350. Mechanical fuel pump.
I had a little issue with the carb I just had done. Took it off and took it back. Guy found a few things I thought were significant. So I put fuel back in. Was planning to (and might still) remove the tank to look for issues in there(is there a bladder?)
anyway, I started it up at idol the pressure reads 2.5. What should it be?
i thought about 5-5.5 ??
I had a little issue with the carb I just had done. Took it off and took it back. Guy found a few things I thought were significant. So I put fuel back in. Was planning to (and might still) remove the tank to look for issues in there(is there a bladder?)
anyway, I started it up at idol the pressure reads 2.5. What should it be?
i thought about 5-5.5 ??
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
77 stock 350. Mechanical fuel pump.
I had a little issue with the carb I just had done. Took it off and took it back. Guy found a few things I thought were significant. So I put fuel back in. Was planning to (and might still) remove the tank to look for issues in there(is there a bladder?)
anyway, I started it up at idol the pressure reads 2.5. What should it be?
i thought about 5-5.5 ??
I had a little issue with the carb I just had done. Took it off and took it back. Guy found a few things I thought were significant. So I put fuel back in. Was planning to (and might still) remove the tank to look for issues in there(is there a bladder?)
anyway, I started it up at idol the pressure reads 2.5. What should it be?
i thought about 5-5.5 ??
GM says 7.5 - 9 psi
download these free specs from GM; specific to your 77 ... study up
https://www.gmheritagecenter.com/doc...t-Corvette.pdf
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Carter fuel pump's $20 at RA.
You Ensure your hoses at bottom of pump are not kinked and ensure they are correct molded "S" hoses ... wrong hose simply cut from a reel/spool will often kink and that'll starve motor.
CF sponsor WILLCOX has the right S hoses ... maybe pump as well
You Ensure your hoses at bottom of pump are not kinked and ensure they are correct molded "S" hoses ... wrong hose simply cut from a reel/spool will often kink and that'll starve motor.
CF sponsor WILLCOX has the right S hoses ... maybe pump as well
Thread Starter
Intermediate
Joined: Feb 2020
Posts: 29
Likes: 3
From: Rosharon, TX
All good now
I replaced the pump. While doing that I noticed a partial crimp in the fuel line. So between all that and the carb issues it got fixed. Runs good now.
Thank for all your input
Thank for all your input
