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AFR Head Issue?
Hey Guys!
I bought a set of AFR's 260cc LS3 heads. When I bolted these to my LS9 I noticed inside the CNC machined intake port a hole on the side of the chamber. I was wondering if you guys had any ideas as to why this is there or was this a machining flaw. Please see the attached photo. Thanks Guys for your help in advance.
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