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So the T2 housing do have wavy surfaces but not entirely across ( *for reference* about half a finger width on either side of the spark plug holes) but in different places some parts are smooth too. I also checked my NA housings and they look good so I'll be using those just gotta swap exhaust sleeves...
I have a question about a deep groove that I found on the irons, all of them have it actually, some deeper that others is this...bad ,normal can it be lapped out?
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