Throttle Body Shop
TBS-10322
Throttle Body Shop TBS 10322 GM TBI 28 Psi SILVER Fuel Pressure Spring
Pressure Regulators
TBI 28psi "SILVER" fuel regulator replacement spring Fits: 1986-95 2.8L 4.3L 5.0L 5.7L 7.4L TBI motors
For modified motors it bumps stock TBI fuel pressure from 11-12psi to 28-29psi - fits OEM regulator can
This spring will require a fuel pump upgrade for the increased pressure - see our store for this
2nd photo shows typical TBI injector assembly these fit
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GM TBI 28psi "SILVER" fuel regulator replacement spring for 1986-95 GM TBI motors
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Mix me 4428