F&B 6-BBL Efi issues - 69 Plymouth Belvedere w/ Gen 3 Hemi

[red99]

Hi everyone, does anyone have suggestions- the gas pedal is extremely stiff, it takes a LOT of strength to push down the gas pedal. We removed a spring and so the first throttle body now feels better but it still feels like hitting a brick wall to get the next throttle bodies to open. And by removing that spring from the first throttle body, it sticks open and makes a whistling sound and so we put the spring back in place. I tried contacting F&B but they don’t have a phone number, I submitted my issue through their “contact us” page several times but no response. I bought the vehicle at Mecum last year, great build, other than the F&B 6-bbl Efi system makes it so the gas pedal is extremely stiff.

 

[66chargerpat]

From Louisiana. Hopefully someone can help you From here.
Sweet car.

 

[davek]

please post pic of driver side of carbs. I have 6 pack setup and only 1 spring and .

 

[Paul_B]

Pic of the linkage throttle linkage would help us understand how things were put together.

Does the throttle feel difficult to move by hand under the hood? This could help narrow down if it’s something in the EFI setup or if it’s in the throttle cable and/or gas pedal mechanism.

 

[red99]

Hi again, I received a response from Bruce at F&B. We're gonna send him the photos he requested and I'll post a follow-up thread here once it's resolved to let everyone know what we found. Thanks again !!

 

[biomedtechguy]

I'll post a follow-up thread here once it's resolved to let everyone know what we found.

May 1st 2023...
@red99