Here are some of the latest 3D's showing how the float
bowl moves up and down a half inch to lean the mixture.

The scale on this DWG is more accurate as I found
my Holley 4 barrel to measure.

BTW if you apply dynamic pressure to the float bowl
the delivered mixture will be a function of both vacuum
in the venturi throat plus the square law dynamic pressure
In other words the dynamic pressure in the
intake runners will be the square of the air velocity.
At full chat that can be as high as 300 MPH.
Sort of a mini pito tube in the intake runner.

I am not sure this is what you want but it can always
be leaned and the bottom line is: the fuel will squirt
out into the intake runner better.

I learned this trick from Ellison.

The more I work on this the better it looks.

You will be up and running in 5 minutes not
one year tuning an EFI in the air.

There are only four cheap parts to make.
The rest of the needed parts are stock Holley.
One can buy a brand new 4 barrel Holley for $250 to scavenge
the parts from. Perhaps someone can find some on ebay.

Paul Lamar


Here is a more compact version that will fit under most
cowls.


Paul Lamar

Paul,

The 2 float bowls could be mounted to a single metering plate cross drilled with 2 separate outlets.  Then only one unit would have to be raised and lowered.  Would this require flex tubing from the bowl outlets to the venturi tubes?  We would have to turn a venturi into 2 2 inch OD tubes?  Just thinking.

Joe Berki

It does require flex tubing. Each float bowl needs to be close
to the jet. Sketch up what you have in mind.

Here are some dwgs for the Marvel Schribler HA-6


Paul Lamar