FUEL PULSE DAMPER, 6AN, STANDARD RANGE 40-70 PSI 2000-ford-f-150-esi9707850 It has a 6

It has a 6

Improved fuel economy and ring seal for more power

This manifold is compatible with stock heads

4041 - 1964-1972 A-Body Boxed Lower Control Arms- Poly/Roto-Joint

These are Not intended to meet on-highway compliance programs and are Not Legal for Sale or for Use in California

FUEL PULSE DAMPER, 6AN, STANDARD RANGE 40-70 PSI 2000-ford-f-150-esi9707850 It has a 6Fuel pulse dampers act in tandem with the fuel pressure regulator to further control the fuel pressure in an EFI system. They act to smooth out the pressure pulsations caused by the injectors opening and closing as well as the fuel pump operating. These pulsations happen so quickly that in many cases they can't be identified with an analog gauge but can cause issues with fuel delivery to the engine.