I have not spent time comparing a sharp vein to one that is wider like in the photo but it seems to get the same results.

There is another thing on the eagles that helps. Machine cut on chamber on intake valve side. None of the Apache heads Ive seen has it

Screenshot_2019-01-01-03-30-50-1.png
Last edited by sixpackgut; 01/01/19 06:33 AM.
Gen 3 power 6.22@110, 9.85@135
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