Aussie speed

Yes they have dyno-tested the Aussie Speed manifolds...

Slant Sickness! How To Add 77 HP To Your Mopar Slant Six! - Hot Rod Network

Having trouble copying the link, but copy the above into your browser, hope this helps...
I assume You meant to quote the post that preceeded that one, and in said post I never said they haven't, but even in the article You linked they blew the head gasket &
couldn't test the 2nd Aussie intake..... what I said in post #2 is 100% correct, NOBODY has taken a built eng and ran Cliffy, Offy, & Aussie 4bbls back to back. Or any of
the Dual-carb manny's back to back, or three or more single 2bbl mannys back to back.