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78buckshot -> RE: my new 69 , possibly.... (5/26/2008 4:48:39 PM)
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Hi Aldo, you won't really know the compression ratio unless you pull one of the heads and c.c. the total combustion chamber, that's allot of wrenching just to find the C.R. You can get a good idea of the head c.c. from the casting marks on the front of each head and maybe look through a spark plug hole to see if the piston has a dome. I wouldn't worry too much unless you have big issues with pre-ignition (ping), then you can adjust the timing, run a colder thermostat, inject water, etc. Good luck with the prospect.
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