Weiand Nostalgia Series intake manifolds are made using the original tooling, and may have minor appearance imperfections that do not affect the functionality of the part. These minor blemishes are a natural part of the casting process when using the original sand casting tooling.
By porting 049 heads and getting an Eagle 496 balanced stroker kit, a COMP K11-443-8 cam kit, I was able to port match the intake to the heads use a 2 inch spacer on this Manifold and get 670 HP to the flywheel on my 65 Impala SS. I now have to work on my Muncie to handle the power.