David,
If it was me I would get one of those edelbrock packages with a new cam & manifold ($300). Don't know what kind of carb you have but might be a good time to change. A different set of heads would be nice but they are kind of pricey. What kind of rear end and exhaust do you have? These areas need to be looked at as well.
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69 393W Sportsroof deluxe
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