# attn Domantion

**URL:** <https://forums.speedlife.net/t/attn-domantion/185885>\
**Category:** PittSpeed Automotive\
**Created:** [October 28, 2006, 2:02pm UTC](https://forums.speedlife.net/t/attn-domantion/185885 "2006-10-28T14:02:45Z")\
**Posts on this page:** 1\
**Showing post:** 41

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**Author:** ![electronBLUESS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/electronbluess/32/6039_2.png) [@electronBLUESS](https://forums.speedlife.net/u/electronBLUESS)\
**Post date:** [December 29, 2006, 5:23pm UTC](https://forums.speedlife.net/t/attn-domantion/185885/41 "2006-12-29T17:23:18Z")

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> [@Newman's 1986 BMW 326rb build thread.](https://forums.speedlife.net/t/newmans-1986-bmw-326rb-build-thread/22123/896):
>
> yes comparing between different porters on different benchs is misleading but those are 9/10 times those heads aer cnc which means each runner is the same. but when u port heads by head u want to make sure they all flow the same

doing it by hand will not get the ports the same cnc\>hand porting

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