I'm honestly considering the summit 6400. My only reservations are not knowing if my stock valve springs can hold up to it, and not knowing what stall converter I'm running to make sure it's appropriate.

I did take a look at the PAW cam. Seems fairly close in relation to the summit cam. Like I said, without sacrificing drivability, vacuum, and lifespan, would the summit produce the same amount of power just at a slightly higher RPM? I do a lot of highway driving, so I wouldn't mind the 2000-4500 rpm range, but I'd also like to be able to get moving from stop light to stop light, if you know what I mean.