[Morris]

Ant

Running foam in as a filter for a carb is dangerous......as we found out ..... when it's cold or cooler and it back fires....... the foam will go up in smoke.....

So the extreme top would be the top of choice.......

We are running a 1/2" insulator under the carb.....and the 4 hole kind because the linkage of a dominator is in the middle of the holes and we would not want it to drop in to the intake manifold....

The minimum gap between the carb air horn and the top of the air filter is dependant on the shape of the base of the air cleaner housing ...... just like the boundry layer of air on the outside of the body..... it will follow the shape of the air cleaner base into the throat of the carb.....

And we have a large hood scoop facing backwards to evacuate the air pressure under the hood..... large.....

Morris