There is no realllll reason to replace the lower intake manifold. its short AND fat. On extreme ported applications i can do a complete manifold with lower flanges and injector bosses but ill be offering just upper manifolds with short runners and big plenums and flanges to attach to the lowers for 400. Better price same performance. The full length manifolds from top to bottem will be 550 and i can do a little bit more tuning to your application going that route. But for 90 percent of you the the upper will make a huge improvement. I dont care much for the upper intake manifold design at all. Anything that turns more then 90 degrees on a radius that tight like you see on these stock manifolds, has got to be killing flow in the top end.
-Travis-
Last edited by Travis; 07/01/04 08:57 PM.
