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I followed the instructions and information RallyeBob had posted and didn't have any problems, other than breakthrough. One thing that I did encounter with the carbide grinder was it would cake up with aluminum, ( I used an air grinder ). I kept an old coffee can with a little bit of kerosene handy and would dip the bit in it periodically and clean it. I didn't add the "wedge" as Bucky and a couple of others have done, but still found porting to be a big help from the 2500 RPM range on. I think that the post made by oldopelguy, ( post 69 ) might be a way to accomplish the "wedge" technique with a minimal amount of welding. ftls idea, ( post 26) is good also. Gene Smith and I have discussed the idea of a drop in "wedge", that would bolt in underneath, at length over the past year. I have an idea that may work and am planning to try it after the first of the year for the next manifold for the next engine. Keep us posted on your results. Jarrell
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