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Old 04-03-2005 | 04:10 PM
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BOWTIE1
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From: itasca, TX
Default RE: Engine question

if its a .21 it will runon 30% with out adding a shim ifs it .12-.18 u need to ass a .05 shim pet 5% of nitro so .10 shim for 30% nitro hope this helps