318 4 bbl and intake upgrade

I did an intake "swap" test on a 1976 318, 100% factory assembled stock short block. The stock '76 318 heads with a little bowl work. Summit cam (.455 lift). Stock converter and 2.76 gears.
'73 340 Cast vs Weiand Action Plus vs Holley Street Dominator. Here is the order they finished.

1. 340 cast intake both ET and MPH
2. Followed very very close by the Action Plus
3. and a tight 3rd place was the Holley Street Dominator - with the 318 size ports.