A few years back, I was crewing at the RunOffs for a top 3 AS car - so we were impounded. We were given an area in which to work, and told to remove multiple parts. The inspectors measured displacement, cam lift, and even valve seats, after we (the crew) did the requested teardown. While in impound, we also were protested. We were further instructed to pull the trans, and they counted gear teeth.
Bottom line, we, the crew, did all tear down with our own tools, and inspectors only did measurements.

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Dave Youngren
NER ITA RX7 #61