[joyridin']

The 1955 Chrysler 300 was the first dual 4 bbl engine. It had a 331 cuin Hemi. The next was the 1957 and 58 300's. They had the 392 with dual 4 bbls. They even had a fuel injection option.

DeSoto had a dual 4 bll version also. but I don't recall what size or year it was offered.