Ford Cross Boss Intake, Autolite Carbs

[Gaz64]

The Cross Boss manifold and single 875 cfm inline 4 barrel Autolite carb was Fords successful attempt at "bending" the rules for racing while using a single 4 barrel carburetor.

The Cross Boss is a single plane crossram manifold with removal top to allow lower half to be fitted to the engine.

All 4 barrels of the carb are in communication with the single plane manifold like a typical Holley 4 barrel manifold arrangement to meet the rules.

But the 4 barrels placed inline gave better distribution front to back.
The manifold also made more power than previous 4 barrel combinations.
Eventually, the combination was banned.

The Cross Boss also makes more power in a single inline than two 875s in an IR setup.

The 1425 versions have 2.25in (57mm) butterflies, and are more suited to IR, especially with large engines.

Barry Grant manufactured a similar concept carb named the BAD MAN, 4 barrel inline.

Gary