For some reason I keep thinking that the fifth gen pump should be able to handle your amount of power. When I spoke with Carl I remember debating which pump to run and choosing the CTSV because because the fifth gen pump wouldn't be able to support the engine if I got above 650-680ish. I think that is where it maxes out on n/a engines. Gregg B is running a fifth gen pump to its limit and has around 560rwhp. He hasn't mentioned a drop in pressure at high rpm and he is pretty careful about getting everything right.
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