Dan are you saying there were 2X4 side by side intakes available or used on an FE BEFORE or during 1964?
Perhaps this is also the FIRST example of such an intake (side by side 2X4). Makes me wonder now what the source was for Shelbys twin paxton setup in 1965 or 1966. Where did HE get his manifold?
JOKER21, go for twin 4's side by side on that SOHC application, that would really be different!