Just bought a Tick SNS stage 3 DCR too high?
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Just bought a Tick SNS stage 3 DCR too high?
I just bought a Tick performance SNS stage 3 (235/243 621/624 111lsa). I am running stock unmilled 799 heads with GM MLS gaskets (.051 compressed thickness). I was planning on running 93 octane but I'm coming up with a 9.28 dynamic compression ratio. Is my math correct? Is this too much for pump gas without backing off the timing?