Acid Porting 101: The methodology used for undercover cast iron cylinder head porting concealment
26 pages that reveal one of the biggest secrets in undercover cast iron engine modification. If you are getting out handled down the straightaway in IMCA, Street Stock, Pro Stock, Late Model, NHRA, SCCA or any other division where porting of your cylinder heads is not legal, this book will tell you exactly how the people that are using this modification are doing it. Does your tech man know how to properly look for acid porting? Do you want to know the tricks used to conceal this work? Its all included within. Don't get beat one more time without knowing how they might be doing it. This is a racing secret. Once you pay for it, keep the secret. It will pay dividends in victory lane!
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