I was thinking of having my buddy tumble these in his shop. He did an intake on my 68 a couple of years ago and it came out looking great with a factory perfect finish. Has anyone here ever tumbled a set of cast manifolds?
I think Jerry M tumbles them during his restoration process, but that's a huge shipping bill for me to send them from here so I might see how these do at my buddy's shop.
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I like solid lifter cars, big cams and cars w/ 3 pedals in them. 
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