| You will need some specific tools like an air compressor, die grinder and several grinding bits or stones. The smoothing after the initial porting can be done with a drill and some barrel sanding bits. Make sure your manifolds have no cracks in them before you start. Start by taking the manifold gasket and laying it over the ports and outlining the extra metal with a sharpie. That extra metal is what you can take out at a minimum. Match the ports to gasket and then start going down into the ports. Smooth and round off abrupt corners as they go into the main runner. Take the manifold to turbo gasket and port match that opening. There is a lot of material you can remove in the "dump" area of the manifold. The main thing is don't be afraid to remove some material. It took me several hours to port my manifolds and I removed a lot of material. I've seen some "porting jobs" that looked like all that was done was a little sanding. That would be a waste of time. After you've ground out all the material you feel comfortable with. Follow everything up with 200 grit sandpaper to smooth out the runners and ports and you should be fine. Search classifieds or the general forum for some pics of ported manifolds and compare them to your stockers for an idea of how much material you can grind out. By the way, the porting process is nothing like polishing the plenum. Polishing is to get the metal smooth or to shine. That would not result in a good porting job.
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