Edelbrock 3550 - Manual (Page 10)

10
Pro-Flo EFI Installation Instructions
©2005 Edelbrock Corporation
Brochure No. 63-0115 Rev. 10/05
INDUCTION SYSTEM
The Edelbrock Pro-Flo system delivers fuel and air to the engine via the induction system consisting primarily of a manifold, 4-barrel air valve,
fuel rails, and fuel injectors. The induction system is fully assembled, tested, seal checked, and flowed at the factory and is as easy to install as a
manifold. DO NOT DISASSEMBLE any of these components during installation.
FUEL RAILS
The extruded aluminum rail assembly routes the high pressure fuel to the injectors.
Aluminum rails have an advantage over soft rails both in terms of style and safety.
INTAKE MANIFOLD
The new Edelbrock manifold used with the Pro-Flo system is very similar
to the successful Victor Jr. high-performance single-plane manifold, but
has been designed specifically for electronic fuel injection applications.
4-BARREL AIR VALVE
The Pro-Flo system uses a progressive linkage valve body with four throttle blades
arranged in a conventional 4-barrel pattern, with staged secondaries. The air valve
can flow up to 1000 cfm at 1.5" of mercury when wide open.
FUEL INJECTORS
The Pro-Flo #3550 & 3551 systems use high impedance pintle-type fuel injectors.
The injectors used with #3550 are capable of flowing 44 lbs./hr. at 50 psi. The #3551
uses 29 lbs./hr. injectors. The injectors mount directly onto the manifold, one at each
port, for fuel delivery that is precisely controlled and instantaneously injected.