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Old 01-20-2013, 02:22 PM
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327NUT 327NUT is offline
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You didn't say which 350 heads you have but if they are the generic smoggers I wouldn't waste my time with them....even if you port them. Personaly I would invest in a set of aftermarket heads or Vortec's, don't have to be real expensive, just more modern combustion chamber and ports.
A good set of heads will make or break a perfornance build. Whichever you choose BY ALL MEANS, drill the steam holes, they are there for a reason or Chevrolet wouldn't have spent the time and money.
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