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Vortec heads will take .500" lift No Problem with-out machining. It can be done for about $50 including the valve springs!!! Just take the inner dampener from stander 1.26" od valve springs {Z-28 or Edelbrocks} and remove the posi lock valve seals from the heads. replace the seals with Chrysler 2.2 valve seals from a turbo car and you are done!
The porting you can do easily if you have a steady hand, the Vortecs need little from the factory, just a basic clean-up to make good power!
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