In 1968 and 69, the car with the crossram didn't fit well into any NHRA stock class as that organization didn't allow multiple carburetors unless it was a regular production option. We weren't prepared, or quick enough to compete in NHRA D/MP class at that point though so we ran the rest of the season with the original 1x4 Holley back in place.
Over the winter of 1969/70, after some back yard cyl head work, installation of the 140 cam and 142 valve springs and reinstallation of the 2x4 and a 5.57 rear end, we ran all of the 1970 season in D/MP. We won our share but lost several too. We did win the very last event of the year though. That was the last time we ever had the crossram on an engine. The car ran a best of 11.79 in 1970. I sold the crossram in 1971 for $250 minus the cold air plenum/elbow.