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when you buy a redtop from someone, make sure it's a 90 or 91... otherwise you're still just buying a bigport.
your best bet would be to go the way of 7age.... or you will have to just do a rebuild with high comp pistons (stock or higher comp), shave head, big cams... might get you to like 150-160.... if you want more then the route would be boost.... either way will require at least a piggy back computer if not standalone.
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