602 chevy crate timing

Old 07-27-2009, 12:06 PM
  #1  
clb25740
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Default 602 chevy crate timing

:?: What is the best timing to run in a 602 crate, GM says 32 deg. max, but I know guys running 38 deg. with good results.....I heard 40 plus will burn the pistons......any help is appreicated.
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Old 07-27-2009, 09:48 PM
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russ67chevelle
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take er to the track experiment and see what gives you best mph...but off hand quick answer is cylinder pressure will dictate where u can go.if its ten to one compression then perhaps 35-38 all in timing is ball park.where as same identical motors but bump up compression to 13:1 then max might only be 33 because with more compression you dont need more advance.same goes with nitrous hence retarding motor on the spray
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