Howie - the 225 is another example of doing one's homework. I mentioned the A.M.C. simply because it uses a Carter WCD, which in my opinion is one of the finest, if not the finest 2 barrel ever made. It is infinitely tunable, as it utilizes Carter metering rod technology. If I remember correctly, the 225 used the Carter BBD, which also used metering rods, but only as an on/off switch similar to a power valve. They did not use stepped diameters.
The point to the post was to suggest to attempt to utilize a plenum that was actually designed by engineers, and adapt the entire plenum to the Chevrolet runners; and the added benefit of getting the carb along with the plenum.
There are probably other 6 cylinder factory 2 barrel installations (I know G.M.C. used one on larger 6's), but I am not sufficiently interested to do the research. Another possibility MIGHT (or might not be a straight 8).
And innovation and experimentation is a wonderful thing. I truly believe this, which is why I posted a possible solution with the A.M.C.
Have done my share of experimentation, generally with a less than the desired result, as in the weeks I spent 30 years ago trying to make the two into one actually work!
We actually put a Jaguar double overhead cam 6 cylinder in an MGA. Did you ever try to shift gears with your right hand two feet behind your back?
Handling wasn't much either. Kind of nose-heavy.
Jon.
