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Picked up a set of 8445's the weekend, finally got them degreased (Yuk!). Major carbon buildup. What gets this off easiest? I would like to port them before sending to the machine shop. Also thought of blasting them with a media called StarBlast. Some sort of composite. I can buy locally and use in my little suction sandblaster. any thoughts?

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87 GN
Stock, basic mods, etc.
 

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The best stuff in the world to get rid of carbon is Holley throttle body cleaner. It works amazing. If you can't find that then regular TB cleaner will usually do.

Jonathan
87' Turbo-T
 
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