With a N/A engine you should be fine if you put your intercooler on it. L67's are 8.5:1 comp ratio where N/A are like 9.4:1 but if you pulley up your supercharger to like a 4" pulley OR transfer your knock resisting mods over you should be fine but would want to tune it and let the person tuning it know its a N/A block. And you would probably be best to pulley up from the 3.1 to like stock until you know you are knock free. Just my opinion though

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