[442w30]

I have two points to consider:

1. Chances are the A12 hoods from the Six Pack Super Bee and 440 6bbl. Road Runner are the most efficient design of all.

2. Just because cowl induction has been shown to have some value doesn't mean the 1969-72 designs (I know there are Camaros and Chevelles with the plenum before '69) were the best out there. For all I know, they they could have been less efficient than the 1970-74 Formula, 1971-72 GTO, 1966-69/70-72 Olds OAI, or any brand's Shaker.

Certainly, for all of Chevy's might, it's interesting how they took too long to jump into the ram air bandwagon.