Mine are ported at least that heavily. Check out pics at http://mmb.maverick.to/showthread.php?t=19531&page=2&pp=20
If I do another cam, I might do more Actually, I might stop messing with this engine and get a 351. What is the equivalent intake for a 351W/393? Windsor Jr, or similar? Wiend? Ooops, sorry, you can have your thread back
The 351w Torker intake is not a bad street intake, and probably the equivalent. A Victor is definately a much more aggressive intake. Also too tall without a fair size scoop on a Mav. A well worked Torker would be cool on the street with a 408 IMO. And fit under the Mav hood. Looks like your T289 needs the plenum roof ported. I see some modding, but it is all low in the plenum.