I have recently visited Holleys website and found to my amazement a SC kit for the 5.4 V8 that cranks out about 400HP and about 330 at the tires, After awhile of thinking i realized DAMN...thats more than the lightning. And when the tested it, it had STOCK headers, exhaust etc.. I was wondering if you could give me some more info on the PROS and CONS of these two products and if you could tell me in your opinion which would be better.. Thx in advance
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