Thank you Powerband, much appreciatedThe GO or SHOW factor is part of the equation . Used to be a lot of interest in Tri-Power for the small block six. Many different types of carb combinations have been used. Depending on your resources and your expectations, almost any carb combination that will fit can be used. Attention to clearances and linkage connections are important.
One of most typical is early Holley 1904 / 1908 etc series carbs that can use the glass fuel bowl. Recently there was a lot of posts on using three newer small 2Bbl Carter carbs (which are synchronous 2Bbl's).
Autolite/Ford 1100's are often used also since the Offy linkage should be able to be used.
hav e fun
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The 5205 is for the round top early log intake and the Offy 5907 fits the later flat top starting @ 1970 ( # DOCE head). There is also an Offy 'linkage kit' available which is made for Holley carbs but makes any carb linkage setup simpler to adapt. I believe it's included when you buy the Manifold adapter. I use the Offy linkage to the three carbs but pedal and later 'over the valve cover' cable setup from later Mav/Stang Comet/Granola/Fairmont etc six cars. Some members have totaly fabricated two and three ports onto log as well.
Early Holleys have an open bowl vent on top of carb that leaks fuel under spirited accel and turns. I have not tried small Weber carbs but maybe next time.
I've tried different kinds of carbs and combinations and a Plenum to the three ports with a big 2 Bbl ,. The big 2 Bbl yielded most consistent results but was not faster...