What's gutless? What is your goal for the car? Let me explain. A 360 with a mild cam and 4bbl, if tuned properly, should be around 325 hp gross? So if this is "gutless", and you think adding 75 hp will go from "gutless" to "world beater", then I would step back and access. Is there a certain E.T. you are hoping to achieve that would make you happy? Tell us a little more....