The XT manifold is the tall, long-runner version of the Pro-Flo 4 intake, which trades some hood clearance for better airflow into rectangle port heads. Injection is sequential rather than batch fire, so each injector times to its own cylinder, giving the cold-start manners and part-throttle behavior a converted carbureted engine usually gives up.

Edelbrock 35893 Pro-Flo 4 XT EFI System Specifications:

• Sequential port fuel injection for Chevrolet LS Gen III and IV rectangle port engines.
• XT-style manifold, 90 mm throttle bore, black finish.
• 42 lb/hr injectors supporting up to 675 horsepower.
• Manifold dimensions A-10.2 in., B-10.0 in., C-16.9 in., D-3.2 in., at 15 degrees.
• Gaskets and 1/8-27 NPT fuel pressure port included. Check hood clearance before ordering.

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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