I also got some pictures of the manifold port work I have done on this. Also took comparison pictures vs the manifold I had smoothed out for the 305 in the Tahoe but had left the ports at the manifold flange almost stock. These manifolds have alot of material on the cylinder head flange end. The ports on the plenum end are already alot larger than the head end. Just need to clean up the radius up top and smooth out the casting flash. It looks rough to the camera but it is smooth to the finger. Best way to clean the carbon mess on this manifold is to hpse it down with brake parts cleaner a couple of times. Then once that dries up, drop it into a tub of simple green and water. Left it overnight and the carbon just melted off of it. Also took a picture of Lloyd Elliots port work vs the stock Vortec intake gasket. I could have gone more on the ports but they already outflow the valve throat, valve and seat. Even with the stock port at the manifold flange after cleaning the ports up and removing the casting flash they outflow the stock Vortec head.
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