Quote:
Originally Posted by Hillside
That helps them, done correctly. 
Scott
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hiilside what do you change to do a set of heads,bigger vavles,open them up cc them.what size vavles sould i go with.its a 89 in with a s&s 561 cam,super e carb,9-5 comp,think im goin to use .30 headgaskets to up the compression