Well, let’s seeeeee....... if you can feed one whole side with a single .040 hole......

....... divided by....... carry the one...... times the square.......

Equals........ way smaller than .058 should be fine.

68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads