I don't think they mess with 617's much. Most of the cars I have seen have been 603/6's with a 602 thrown in.

With stock IP a 603 is good for about 180hp before maxing out. With larger Myna elements you an crank the power up a lot more.

But this all costs a lot of money and you have to really know what your doing to get it to all work.

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200