Posted for "Ed Anderson" <eanderson@carolina.rr.com>:

John, I could not tell about your intake pipe setup from the photos.
However, one approach is to connect the primary to primary pipe and
secondary to secondary pipe using two 1/2 circle connector pipes. The bend
radius for the connectors would of course need to be such that their ends
covered the appropriate intake tubes.   The smaller radius bend connector
pipe on the inside for the primaries and the larger radius bend pipe on the
outside (or top of the primary connector) for the secondaires.

The second gen throttle body has 3 ports, 1 for the primary and two for the
secondaries.  I would consider a 1/4" plate welded to the two connector
pipes such that you can cut a hole in the lower part of the plate for the
primary throttle body port (lower position)  to flow into the primary tube
connector and two holes in the upper part of the plate for the two secondary
ports for airflow into the secondary connector pipes.

I did something like this except I used fiberglass and aluminum tubes for
connectors between the intake pipes might be easier.

It just occured to me that your installation is probably not Plugs Up.  In
which case, the above suggestion may not work due to cowl clearance.

Ed Anderson