I’m a little confused by some of the wording, as I’m not totally familiar with terms, but my ‘57 Chevy 3200 has passenger and driver side floor vents that get fresh air fed in through the cowl between hood and windshield.

1957 Chevy 3200
Daily Driver
PS, A/C, Tilt column, Rebuilt 350, Rebuilt TH350, Reupholstered Bench Seat, sound proof/insulated, LED headlights/taillights/backup lights/interior courtesy lights.
Follow in the DITY