All 305 Engines Horsepower

If he is not sealing the carb to it, I'm sure it's not doing a thing.

Originally Posted by SSDiv6

I will bet if they remove it, there will not be any performance degradation. The factory FI setup has a restrictive outlet as shown in the picture. In addition, the inlet portion, as shown in the picture, is restricted and even when you remove the panels, the grills are small and are not pointed forward, they are pointed downwards.

If it was so effective, why racers with FI remove the whole assembly and use a straight K&N air filter directly on the throttle body?

The drop down carburetor base is more effective since it distributes the air more efficiently at the carburetor entry.

[Frank Castros]

Sealing a "scoop" to the carb is not always beneficial, but how could directing fresh air to it not be?

[keith ohanesian]

Originally Posted by Frank Castros

Sealing a "scoop" to the carb is not always beneficial, but how could directing fresh air to it not be?

I disagree. If the scoop is positioned correctly over the carb and sealed correctly it will be beneficial. If it's not it could be a disaster..

[SSDiv6]

Originally Posted by Frank Castros

Sealing a "scoop" to the carb is not always beneficial, but how could directing fresh air to it not be?

That's correct. The inlet area of the scoop is more critical than the size of the scoop. If the inlet is too big, then you need to bleed off the excess of inlet air due to the fact it will induce drag on the car and unnecessary turbulence inside the scoop that will effect the performance of the engine.

Also, a hood scoop only becomes effective after specific speeds.