I would hate to see you dump 1000.00 more into a set of Stealth heads having them ported and then crack like another member recently posted. The Stealths have their place for many and can easily flow 300 cfm but and I’ll leave it at but.
I had my stealth mildly ported 2 years ago. Gains were minimal. (Maybe 1/2 tenth in the 1/4). Last fall I bought a set of TF 240s and picked up 3 1/2 tenths. (Not a total apples to apples comparison as I did go to a smaller cam, smaller tube headers and up my compression by about 1/2 pt).
If I had to do over again, I would never had the stealths ported, I would have just bought the TF 240..
