I should have qualified that with American Cars subject to EPA and CARB for emissions and EVAP reasons. I know from my Dodge engineer ('62 - 2005) friend EVAP is what killed the 3X2 because Holley would not do the EVAP modification to all three carbs even though they (Chrysler engineers) had already done it. Bet it was too late and to close with all of the EPA/CARB emissions regulations already all most to the end of the two year phase in to even consider dual quads for any model. As I said they could even get the 3X2 carbs into production at that point.