Posted by Mavman (IP: 204.181.93.55) on November 29, 1999 at 06:07:29:
I picked up my spare set of 289 heads. Looking for more info on porting these things. Anyone have any info on the nipples that stick up on the exhaust side? I thought I read somewhere that they are necessary to an extent. I read an article within the past year regarding porting and polishing, but don't remember where I saw it.
I appreciate all the info so far, and would appreciate any more help given.
PS: Near the end of the month so I'll probably repost this in the new board.