My Vtec Gives Hugs mmmbah
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If you are running a DET and a VE head, your compression will be 9.3:1. The amount taken off during a basic resurface is pretty negligible on the CR of the engine. Prob no more than .1CR unless shaved a lot.
If you have GTiR bottom end, the compression ratio is still 9.3:1 with the VE head. The GTiR has different compression numbers than the DET because of the head chamber design.