Your right it does say that, so you should add the 56mm tbody and even port n polish your head to gain acceptable gains. While your at it might as well put in the secret cams and you'll definitly add some horses with all these mods. I heard the HO version manifold is a bit bigger than the LO manifold so go with the HO so you can fill the plenum with air more. And to top it off a fine tuning can be beneficial. Plus the 2.3 intake manifold looks a lot better.

Well looks dont bother me mostly, but if i can swap the TBs and make a nice gain that would be accually quite probable.

that article has been proven to have incorrect information in it. so do not believe everything in it.

really well thats good to hear, I was just bored so i typed quad 4 in yahoo search and I clicked on that linked. Not sure if the info is incorrect but i hope their wrong about the Intake Manifold. But thankz for letting us know oldsman