I don’t know how extensively TF “port matched” the manifold for this test, but they got pretty good results using their manifold.

https://static.trickflow.com/global/images/chartsguides/t/tfs-61617801-c01_wj.pdf

The cam doesn’t have tons of duration, and combined with the std port window......the combo peaks pretty early, and looks like the curve is dropping off.

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