Last I heard Parker quit making that intake. All the ones you see on eBay are Chinese knock offs. True?
not sure about "ALL".. but I would guess that nearly all on ebay are cheaper copies. I would bet that the original versions go very quiuckly when they do pop up. IIRC.. the best way to tell the genuine deals are the runner extensions in the plenum. But.. I've also heard that those razor sharp dividers are causing some of the issues with them which is why some will remove them completely or cut them back a bit. With overly large port entries it's also usually better to have bullnosed radii on each one than to be thinly profiled and cause shearing effects. Either way though.. these manifolds need a decent amount of additional work to get the most from them and I for one would never bolt one up in stock form. Original or not. IMHO, you really can't.. or shouldn't.. expect a runner with this type of cross section near the top to have decent low end torque. That's why I'l likely end up with about a 1/4 inch epoxy fill on the floors when it's all said and done. I think of them as a mini single 4bbl tunnel ram since the exit angles are excellent.
