You'll probably want a 66 or older then. Less safety stuff and just less stuff in general. You'll need to do a new tranny to handle HP and you'll probably want to do a disc brake setup up front to make safe stops. Build your motor, add a Kafer-cup brace and probably a rear engine mount, some seatbelts and decent seats and you'll have a fast and relatively reliable car in a straight line. A roll bar would be one thing you might want to seriously consider if you think you'll be making regular track runs.
Jason
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