1970-71 DEMON DART SWINGER 340 TWIN SCOOP HOOD

TF360 said
Mine look the same and I used a 4 inch hole saw with drill bit in the center. You have to go slow a nd careful, but mine came out great- 10 bucks

Slow...careful and plenty of oil helps too! That will prolly be the way I'd go since I've done that before for a hoodscoop hole!