GM 820 casting port tips needed
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mitchmc
- New Member
- Posts: 32
- Joined: Tue Jun 07, 2011 6:18 pm
- Location: Saskatoon, Saskatchewan, Canada
GM 820 casting port tips needed
Hey just wondering if anyone has any experience with porting the 820 bbc castings on the forum? I have them on my 402 right now, totally stock heads, and looking to get a little bit more out of them. Just looking for a mild port job here and i'm not too experienced. I've done some searching and could only find stock flow numbers on them. Any tips appreciated!